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Research

Field of Study

○ Synthetic Organic Chemistry

Subject of Study

○ 複素環化合物の合成, ポリフェノール誘導体の合成, βージケトン誘導体の合成, マイクロ波下の有機合成化学 (heterocyclic compound, bioactive substance, polyphenol, microwave)

Book / Paper

Academic Paper (Judged Full Paper):

1. Shogo Abe, Saki Hirose, Mami Nishitani, Ichiro Yoshida, Masao Tsukayama, Akihiko Tsuji and Keizo Yuasa :
Citrus peel polymethoxyflavones, sudachitin and nobiletin, induce distinct cellular responses in human keratinocyte HaCaT cells,
Bioscience, Biotechnology, and Biochemistry, Vol.82, No.12, 2064-2071, 2018.
(DOI: 10.1080/09168451.2018.1514246)
2. Rie Tsutsumi, Tomomi Yoshida, Yoshitaka Nii, Naoki Okahisa, Shinya Iwata, Masao Tsukayama, Rei Hashimoto, Yasuko Taniguchi, Hiroshi Sakaue, Toshio Hosaka, Emi Shuto and Tohru Sakai :
Sudachitin, a polymethoxylated flavone, improves glucose and lipid metabolism by increasing mitochondrial biogenesis in skeletal muscle.,
Nutrition & Metabolism, Vol.11, 32, 2014.
(DOI: 10.1186/1743-7075-11-32,   PubMed: 25114710)
3. Masao Tsukayama, Ryoichi Ichikawa, Kanji Yamamoto, Takahiro Sasaki and Yasuhiko Kawamura :
マイクロ波照射による柑橘ユコウ乾燥果皮からのポリメトキシフラボンの迅速・効率的抽出,
Nippon Shokuhin Kagaku Kogaku Kaishi, Vol.56, No.6, 359-362, 2009.
(DOI: 10.3136/nskkk.56.359,   CiNii: 1390282681384776704)
4. Masao Tsukayama, Eiji Kusunoki, Mamun Mohammad Hossain, Yasuhiko Kawamura and Shinji Hayashi :
Microwave-Assisted Synthesis of Polymethoxyacetophenones and Natural Polymethoxyflavones, and Their Inhibitory Effects on Melanogenesis,
Heterocycles, Vol.71, No.7, 1589-1600, 2007.
(CiNii: 1521136280136347776,   Elsevier: Scopus)
5. Nazrul Islam, Masao Tsukayama and Yasuhiko Kawamura :
Charge-Transfer Reaction of Butatriene: Formation of Dihydronaphthalene Derivative,
International Journal of Modern Physics B, Vol.20, No.25-27, 4619-4624, 2006.
(DOI: 10.1142/S0217979206041781,   Elsevier: Scopus)
6. Takaaki Ishiduka, Masao Tsukayama and Yasuhiko Kawamura :
Preparatiion of 1,1-Diarylethenes by McMurry Reaction: Mechanism and Geometry Selection,
International Journal of Modern Physics B, Vol.20, No.25-27, 4595-4600, 2006.
(DOI: 10.1142/S0217979206041744,   Elsevier: Scopus)
7. Mamun Mohammad Hossain, Yasuhiko Kawamura, Kazuyo Yamashita and Masao Tsukayama :
Microwave-Assisted Regioselective Synthesis of Natural 6-Prenylpolyhydroxyisoflavones and Their Hydrates with Hypervalent Iodine Reagents,
Tetrahedron, Vol.62, No.36, 8625-8635, 2006.
(DOI: 10.1016/j.tet.2006.06.066)
8. Mamun Mohammad Hossain, Takanori Tokuoka, Kazuyo Yamashita, Yasuhiko Kawamura and Masao Tsukayama :
Regioselective Synthesis of 6-Prenylpolyhydroxyisoflavone (Wighteone) and Wighteone Hydrate with Hypervalent Iodine,
Synthetic Communications, Vol.36, No.9, 1201-1211, 2006.
(DOI: 10.1080/00397910500514121)
9. Masao Tsukayama, hiranari wada, Yasuhiko Kawamura, Kazuyo Yamashita and Masaki Nishiuchi :
Regioselective Synthesis of 6-Alkyl- and 6-Prenylpolyhydroxyisoflavones and 6-Alkylcoumaronochromone Derivatives,
Chemical & Pharmaceutical Bulletin, Vol.52, No.11, 1285-1289, 2004.
(DOI: 10.1248/cpb.52.1285,   PubMed: 15516747,   CiNii: 1390001204169591424)
10. Masao Tsukayama, Yasuhiko Kawamura, Takaaki Ishizuka, Shinji Hayashi and Fumihito Torii :
Improved, Rapid and Efficient Synthesis of Polymethoxyflavones under Microwave Irradiation and Their Inhibitory Effects on Melanogenesis,
Heterocycles, Vol.60, No.12, 2775-2784, 2003.
(CiNii: 1520291854828072448,   Elsevier: Scopus)
11. Yasuhiko Kawamura, Takahiro Abe and Masao Tsukayama :
One-Way and Two-Way Geometrical Isomerizations of 1, 1-Diarylketone Oxime O-Methyl Ethers Induced by Photosensitized Electron Transfer,
International Journal of Modern Physics B, Vol.17, No.8&9, 1487-1491, 2003.
(DOI: 10.1142/S0217979203019204,   Elsevier: Scopus)
12. Yasuhiko Kawamura, Yasuyuki Akai and Masao Tsukayama :
Combinatorial Synthesis of Exohedrally Modified Fullerene Derivatives,
International Journal of Modern Physics B, Vol.17, No.8&9, 1910-1915, 2003.
(DOI: 10.1142/S0217979203019861,   Elsevier: Scopus)
13. Yasuhiko Kawamura, Takaaki Ishiduka and Masao Tsukayama :
One-Way Geometrical Isomerization of 1,1-Diarylethenes Induced by Photosensitized Electron Transfer,
International Journal of Modern Physics B, Vol.17, No.8&9, 1492-1497, 2003.
(DOI: 10.1142/S0217979203019216,   Elsevier: Scopus)
14. Yasuhiko Kawamura, Masashi Maruyama, Kazuyo Yamashita and Masao Tsukayama :
Environmentally Benign Synthesis of Isoflavone Derivatives Using Polymer-Supported Hypervalent Iodine(III) Reagent,
International Journal of Modern Physics B, Vol.17, No.8&9, 1482-1486, 2003.
(DOI: 10.1142/S0217979203019198,   Elsevier: Scopus)
15. Yasuhiko Kawamura, Masashi Maruyama, Takanori Tokuoka and Masao Tsukayama :
Synthesis of Isoflavones from 2 -Hydroxychalcones Using Poly[4-(diacetoxy)iodo]styrene or Related Hypervalent Iodine Reagent,
Synthesis, No.17, 2490-2496, 2002.
(DOI: 10.1055/s-2002-35617)
16. Yasuhiko Kawamura, Kazuyuki Akaishi, Masaki Nishiuchi and Masao Tsukayama :
Photoreactions of 1,3-Dipolar Cycloadducts of Mesoionic Compounds with Buckminsterfullerene,
Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, Vol.376, 219-224, 2002.
(DOI: 10.1080/10587250210790,   Elsevier: Scopus)
17. Masao Tsukayama, Akihiro Oda, Yasuhiko Kawamura, Masaki Nishiuchi and Kazuyo Yamashita :
Facile synthesis of polyhydroxycoumaronochromones with quinones: synthesis of alkylpolyhydroxy- and alkoxycoumaronochromones from 2'-hydroxyisoflavones,
Tetrahedron Letters, Vol.42, No.35, 6163-6166, 2001.
(DOI: 10.1016/S0040-4039(01)01234-5,   CiNii: 1570291225110178432,   Elsevier: Scopus)
18. Masao Tsukayama, Hironari Wada, Masashi Kishida, Masaki Nishiuchi and Yasuhiko Kawamura :
Regioselective Synthesis of Prenylisoflavones: Syntheses of Luteone and Luteone Hydrate,
Chemistry Letters, Vol.2000, No.12, 1362-1363, 2000.
(Elsevier: Scopus)
19. Yasuhiko Kawamura, Ryusaku Takayama, Masaki Nishiuchi and Masao Tsukayama :
Curious oxygen effect on photosensitized electron-transfer reactions of benzophenone oxime O-methyl ethers: one-way photoisomerization of an iminic double bond,
Tetrahedron Letters, Vol.41, No.42, 8101-8106, 2000.
(DOI: 10.1016/S0040-4039(00)01412-X,   Elsevier: Scopus)
20. Yasuhiko Kawamura, Yoshinori Sato, Tokunaru Horie and Masao Tsukayama :
Photosensitized Oxygenation of Dimethyl Fluorenylidenetributylphosphoranylidenesuccinate,
Phosphorus, Sulfur and Silicon, Vol.149, 1-6, 1999.
21. Masao Tsukayama, Li He, Ken Tsurumoto, Masaki Nishiuchi and Yasuhiko Kawamura :
Regioselective Synthesis of Prenylisoflavones. Syntheses of Allolicoisoflavone A, 2,3-Dehydrokievitone, and Related Compounds,
Bulletin of the Chemical Society of Japan, Vol.71, No.11, 2673-2680, 1998.
22. Masao Tsukayama, Li He, Masaki Nishiuchi, Masafumi Takahashi and Yasuhiko Kawamura :
Regioselective Synthesis of Prenylisoflavones. Syntheses of Lupiwighteone, Lupiwighteone Hydrate and Related Compounds,
J. Chem. Research (S); J. Chem. Research (M), Vol.(S) 1998; (M) 1998, 238-239, 1998.
23. Tokunaru Horie, Yoshidumi Otsuru, Ken'ichi Shibata, Kazuyo Yamashita, Masao Tsukayama and Yasuhiko Kawamura :
13C NMR Spectral Assignment of the A-Ring of Polyoxygenated Flavones,
Phytochemistry, Vol.47, No.5, 865-874, 1998.
24. Tokunaru Horie, Ken'ichi Shibata, Kazuyo Yamashita, K Fujii, Masao Tsukayama and Yoshizumi Ohtsuru :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XXIV. A Convenient Method for Synthesizing 6- and 8-Methoxylated 5,7-Dihydroxyisoflavones,
Chemical & Pharmaceutical Bulletin, Vol.46, No.2, 222-230, 1998.
25. Yasuhiko Kawamura, Yasunori Iwano, Noboru Watanabe, Tokunaru Horie and Masao Tsukayama :
Reactivity of Methylenetriphenylphosphoranes Having Two Phenyl Groups Constrained with Ethano or Etheno Bridge,
Phosphorus, Sulfur and Silicon, Vol.132, 167-181, 1998.
26. Yasuhiko Kawamura, Koji Akitomo, Masaaki Oe, Tokunaru Horie and Masao Tsukayama :
Diinsertion of Fluorenylidene into a Sulfur-Sulfur Bond of Diaryl Disulfides,
Tetrahedron Letters, Vol.38, No.52, 8989-8992, 1997.
27. Tokunaru Horie, Yosidumi Otsuru, Noriko Minamimoto, Kazuyo Yamashita, Yasuhiko Kawamura and Masao Tsukayama :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XXIII. Demethylation Behaviors of 6-Hydroxy-4 ,7-dimethoxy-5-tosyloxyflavones with Anhydrous Aluminum Halides in Acetonitrile,
Chemical & Pharmaceutical Bulletin, Vol.45, No.10, 1573-1578, 1997.
28. Masao Tsukayama, Hideyuki Utsumi, Akira Kunugi and Hiroshi Nozaki :
Cyclization of o-(3-Hydroxy-3-methylbutynyl)phenols with Boron tribromide to 4-Bromo-2,2-dimethylchromenes and their Electroreduction to 2,2-Dimethylchromenes,
Heterocycles, Vol.45, No.6, 1131-1142, 1997.
29. Masao Tsukayama, Hideyuki Utsumi, Akira Kunugi and Hiroshi Nozaki :
CYCLIZATION OF o-(3-HYDROXY-3-METHYLBUTYNYL)PHENOLS WITH BORON TRIBROMIDE TO 4-BROMO-2,2-DIMETHYLCHROMENES AND THEIR ELECTROREDUCTION TO 2,2-DIMETHYLCHROMENES,
Heterocycles, Vol.45, No.6, 1131-1142, 1997.
30. Tokunaru Horie, Ken'ichi Shibata, Kazuyo Yamashita, Yasuhiko Kawamura and Masao Tsukayama :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XXII. A Convenient Method for Synthesizing 3,5,7-Trihydroxy-6-methoxyflavones,
Chemical & Pharmaceutical Bulletin, Vol.45, No.3, 446-451, 1997.
31. Masao Tsukayama, Makoto Kikuchi and Yasuhiko Kawamura :
Regioselective Prenylation of Phenols by Palladium Catalyst: Syntheses of Prenylphenols and Chromans,
Heterocycles, Vol.38, No.7, 1487-1490, 1994.
32. Masao Tsukayama, Makoto Kikuchi and Yasuhiko Kawamura :
Regioselective Synthesis of Prenylphenols. Syntheses of Naturally Occurring 4'-Alkenyloxy-2',6'-dihydroxy-3'-(3-methyl-2-butenyl)acetophenones,
Chemistry Letters, No.7, 1203-1206, 1994.
33. Yasuhiko Kawamura, Toshihiro Oda, Yasunori Iwano, Masao Tsukayama and Tokunaru Horie :
Photosensitized Oxygenation of Diarylmethylenetriphenylphosphoranes,
Phosphorus, Sulfur and Silicon, Vol.73, 121-125, 1992.
34. Masao Tsukayama, Yasuhiko Kawamura and Hideo Tahara :
Syntheses of 4',5- and 3',4',5-Oxygenated Pyranoisoflavones: Alpinumisoflavone and Related Compounds, and a Revised Structure of Derrone,
Heterocycles, Vol.34, No.3, 505-516, 1992.
35. Tokunaru Horie, Toshihide Yamada, Yasuhiko Kawamura, Masao Tsukayama and Masafumi Kuramoto :
Oxidation of 2'-Hydroxyacetophenones with Thallium(III) Nitrate in Methanol,
The Journal of Organic Chemistry, Vol.57, No.3, 1038-1042, 1992.
36. Masao Tsukayama, Yasuhiko Kawamura, Hiroto Tamaki and Tokunaru Horie :
Synthesis of Parvisoflavones A and B,
Chemical & Pharmaceutical Bulletin, Vol.39, No.7, 1704-1706, 1991.
37. Tokunaru Horie, Yasuhiko Kawamura, Masao Tsukayama and Shiro Yoshizaki :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XII. A New, Convenient Method for Synthesizing 3,5-Dihydroxy-6,7-dimethoxyflavones from 3,5,6,7-Tetramethoxyflavones,
Chemical & Pharmaceutical Bulletin, Vol.37, No.5, 1216-1220, 1989.
38. Masao Tsukayama, Yasuhiko Kawamura, Hiroto Tamaki, Tomoya Kubo and Tokunaru Horie :
Synthesis of Pyranoisoflavones from Pyronochalcones: Synthesis of Elongatin and Its Angular Isomer,
Bulletin of the Chemical Society of Japan, Vol.62, No.3, 826-832, 1989.
39. Tokunaru Horie, Masao Tsukayama, Yasuhiko Kawamura and Shigeo Yamamoto :
3,5-Dihydroxy-7,8-dimethoxyflavones and Revised Structures of Some Natural Flavones,
Phytochemistry, Vol.27, No.5, 1491-1495, 1988.
40. Tokunaru Horie, Masao Tsukayama, Yasuhiko Kawamura, Masamichi Seno and Shigeo Yamamoto :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XI. A Convenient Method for Synthesizing 3,5,7-Trihydroxy-8-methoxyflavones from 7-Hydroxy-3,5,8-trimethoxyflavones,
Bulletin of the Chemical Society of Japan, Vol.61, No.2, 441-447, 1988.
41. Tokunaru Horie, Masao Tsukayama, Yasuhiko Kawamura and Masamichi Seno :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. 10. Selective Demethylation of 7-Hydroxy-3,5,8-trimethoxyflavones with Anhydrous Aluminum Halide in Acetonitrile or Ether,
The Journal of Organic Chemistry, Vol.52, No.21, 4702-4709, 1987.
42. Tokunaru Horie, Masao Tsukayama, Yasuhiko Kawamura and Shigeo Yamamoto :
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. IX. A New Method for Synthesizing 3,5-Dihydroxy-7,8-dimethoxyflavones from 3-Hydroxy-5,7,8-trimethoxyflavones,
Cheical and Pharmaceutical Bulletin, Vol.35, No.11, 4465-4472, 1987.
43. Tokunaru Horie, Masao Tsukayama, Hiroki Kourai, Yoshikazu Nakayama and Mitsuru Nakayama :
Studies of the Selective O-Alkylation and Demalkylation of Flavonoids. VIII. Synthesis Pedaliin,
Chemical & Pharmaceutical Bulletin, Vol.34, No.1, 30-35, 1986.
44. Tokunaru Horie, Masao Tsukayama, Hiroki Kourai, Chieko Yokoyama, Masayuki Furukawa, Tanihiro Yoshimoto, Shozo Yamamoto, Shigekatsu Watanabe-Kohno and Katsuya Ohata :
Syntheses of 5,6,7- and 5,7,8-Trioxygenated 3',4'-Dihydroxyflavones Having Alkoxy Groups and Their Inhibitory Activities against Arachidonate 5-Lipoxygenase,
Journal of Medicinal Chemistry, Vol.29, No.11, 2256-2262, 1986.
45. 堀江 徳愛, Hiroki Kourai, Masao Tsukayama, 増村 光雄 and 中山 充 :
フラボノイドの選択的O-アルキル化及び脱アルキル化反応に関する研究(第7報)5,6,7-三置換フラボン類の部分脱アルキル化反応及びPectolinarigeninとその同族体の合成,
Journal of the Pharmaceutical Society of Japan, Vol.105, No.3, 232-239, 1985.

Academic Letter:

1. Yasuhiko Kawamura, Yoshinori Sato, Tokunaru Horie and Masao Tsukayama :
Dehydration Induced by Intramolecular Redox Character of a Stable Allylidenetributylphosphorane,
Tetrahedron Letters, Vol.38, No.45, 7893-7896, 1997.
2. Yasuhiko Kawamura, Shuzo Hayashi, Masao Tsukayama and Tokunaru Horie :
Intramolecular Hydrogen Migration of Geometrically Constrained 3,3-Diphenyl-2-t-butyloxaziridine,
Chemistry Letters, No.4, 565-568, 1991.

Proceeding of International Conference:

1. H. Konishi, Mamun Mohammad Hossain, T. Harihara, Yasuhiko Kawamura and Masao Tsukayama :
Microwave-assisted Synthesis of Isoflavone Derivatives with Hypervalent Iodine Reagents,
Grobal Congress on Microwave Energy Applications 2008, P1-17, Otsu, Aug. 2008.
2. Takahiro Sasaki, Kanji Yamamoto, Yasuhiko Kawamura, Masao Tsukayama and Ryoichi Ichikawa :
Extraction of methoxyflavone from Citrus sudachi Hort ex Shirai and conversion into related compounds under microwave conditions,
第7回マイクロ波効果・応用国際シンポジウム, 2007.
3. Takahiro Sasaki, (名) Yamamoto, Megumi Tsuji, Yasuhiko Kawamura, Masao Tsukayama and Ryoichi Ichikawa :
マイクロ波加熱による柑橘類のフラボノイド成分の抽出及び有効成分への変換,
6th International Symposium on Microwave Science and Its Application to Related Fields, Gifu Ogaki, Nov. 2006.
4. Akishi Ninomiya, Yasuhiko Kawamura and Masao Tsukayama :
マイクロ波を用いたフェノール誘導体のアルキニル化及びそれらのクロマノン，ブレニル化合物への変換,
6th International Symposium on Microwave Science and Its Application to Related Fields, Ohgaki Gifu, Nov. 2006.
5. 小西 秀和, Mamun Mohammad Hossain, Yasuhiko Kawamura and Masao Tsukayama :
マイクロ波による高原価ヨウ素試薬を用いた多置換イソフラボンの合成,
6th International Symposium on Microwave Science and Its Application to Related Fields, Ogaki Gifu, Nov. 2006.
6. (名) Ishimoto, Yasuhiko Kawamura, Masao Tsukayama and Kiyotaka Onishi :
マイクロ波加熱によるクロロインドール誘導体の合成,
6th International Symposium on Microwave Science and Its Application to Related Fields, Ogaki Gifu, Nov. 2006.
7. Mohammad Mamun Hossain, Masao Tsukayama, Yasuhiko Kawamura and Kazuyo Yamashita :
Microwave-assisted Regioselective Synthesis of 6-Prenylisoflavone with Hypervalent Iodine,
Seventh Tetrahedron Symposium Challanges in Organic Chemistry, Kyoto, May 2006.
8. Mohammad Mamun Hossain, Masao Tsukayama, Yasuhiko Kawamura and Kazuyo Yamashita :
Microwave-Mediated Regioselective Synthesis of Prenylisoflavones with Hypervalent Iodine,
The 2005 International Chemical Congress of Pacific Basin Societies, 839, Honolulu, Dec. 2005.
9. Masao Tsukayama, Mohammad Mamun Hossain, Harihara Takashi and Yasuhiko Kawamura :
Microwave-assisted Efficient Synthesis of Isoflavones with Hypervalent Iodine Reagents,
2005 International Chemical Congress of Pacific Basin Societies, 907, Honolulu, Dec. 2005.
10. Takaaki Ishiduka, Asami Watanabe, Masao Tsukayama and Yasuhiko Kawamura :
McMurry Coupling Reactions of Substituted Benzophenones: Mechanism and Geometry Selection,
2005 International Chemical Congress of Pacific Basin Societies, 1810, Honolulu, Dec. 2005.
11. Asami Watanabe, Eriko Moriyama, Takaaki Ishiduka, Masao Tsukayama and Yasuhiko Kawamura :
Photoisomerizations of o-Substituted 1,1-Diarylethenes: Vibrating E-/Z-Ratio Change in the Two-way Isomerization and One-way Isomerization in a Crystalline State,
2005 International Chemical Congress of Pacific Basin Societies, 831, Honolulu, Dec. 2005.
12. Nazrul Islam, Etsuko Fujinaga, Masao Tsukayama and Yasuhiko Kawamura :
Reactions of Tetraarylbutatriene with Tetracyanoethene: Intermediary Generation of Diiminocyclobutane and further Transformation into Dihydronaphthalene Derivative,
2005 International Chemical Congress of Pacific Basin Societies, 1184, Honolulu, Dec. 2005.
13. Takaaki Ishiduka, Asami Watanabe, Masao Tsukayama and Yasuhiko Kawamura :
One-way Photoisomerization of 1,1-Diarylethenes: Respective Structure and Reactivity of Thier Cation Radical Intermediates,
2005 International Chemical Congress of Pacific Basin Societies, 849, Honolulu, Dec. 2005.
14. Takeshi Oguro, Etsuko Fujinaga, Masao Tsukayama and Yasuhiko Kawamura :
Photoinduced Electron-transfer Reactions of a Tautomeric Arylnitrone, 2-Aryl-3H-indole-i-oxide,
2005 International Chemical Congress of Pacific Basin Societies, 841, Honolulu, Dec. 2005.
15. Kohsuke Mori, Yuuki Okazaki, Takahiko Tsubota, Masao Tsukayama and Yasuhiko Kawamura :
Bergman Cyclization of 3-(Aroylmethyl)-1,5-diynes Induced by Photoirradiation and Their Hydrogen Abstraction,
2005 International Chemical Congress of Pacific Basin Societies, 840, Honolulu, Dec. 2005.
16. Yohei Uetsuki, Go Ohtani, Kyouhei Takenoi, Masao Tsukayama and Yasuhiko Kawamura :
Dipolar Cycloaddition Reactions of Mesoionic Compounds with Buckminsterfullerene: Photoextrusion Reactions of the Cycloadducts,
2005 International Chemical Congress of Pacific Basin Societies, 661, Honolulu, Dec. 2005.
17. Hidekazu Konishi, Mohammad mamun Hossain, Takashi Harihara, Yasuhiko Kawamura and Masao Tsukayama :
Rapid Synthesis of Polymethoxyisoflavones with Hypervalent Iodine Reagents under Microwave irradiation,
5th International Symposium on Microwave Science and Its Application to Related Fields, Tsukuba Ibaragi, Nov. 2005.
18. Mohammad mamun Hossain, Takahiro Sasaki, Yasuhiko Kawamura and Masao Tsukayama :
Microwave-Assisted Synthesis of Polyhydroxyisoflavones with Hypervalent Iodine,
5th International Symposium on Microwave Science and Its Application to Related Fields, Tsukuba Ibaragi, Nov. 2005.
19. Eiji Kusunoki, Mohammad mamun Hossain, Yumiko Negoro, Yasuhiko Kawamura, Shinji Hayashi and Masao Tsukayama :
Rapid Synthesis of Polyhydroxyacetophenones and Polymethoxyflavones under Microwave Irradiation,
5th International Symposium on Microwave Science and Its Application to Related Fields, Tsukuba Ibaragi, Nov. 2005.
20. Nazrul Islam, Masao Tsukayama and Yasuhiko Kawamura :
Charge-transfer Reaction of Butatriene: Formation of Dihydronaphthalene Derivative,
The 4th International Conference on Advanced materials, Development and Performances, 317, Auckland, Jul. 2005.
21. Takaaki Ishiduka, Masao Tsukayama and Yasuhiko Kawamura :
Preparation of 1,1-Diarylethenes by McMurry Reaction: Mechanism and Geometry Selection,
The 4th International Conference on Advanced materials, Development and Performances, 316, Auckland, Jul. 2005.
22. Mohammad Mamun Hossain, Masao Tsukayama, Takashi Harihara and Yasuhiko Kawamura :
Rapid Regioselective Synthesis of 6-Alkylisoflavone Derivatives under Microwave Irradiation,
The 14th European Symposium on Organic Chemistry, 218, Helsinki, Jul. 2005.
23. Mohammad Mamun Hossain, Takashi Harihara, Yasuhiko Kawamura and Masao Tsukayama :
Microwave-Assisted Noble Synthesis of Polyhydroxyisoflavone Derivatives with Hypervalent Iodine Reagent,
Microwave 2004 International Symposium on Microwave Science and Its Application to Related Fields, 19-20, Takamatsu, Jul. 2004.
24. Eiji Kusunoki, Hossain M. Mohammad, Yasuhiko Kawamura and Masao Tsukayama :
Microwave-Assisted Synthesis of Acetophenone Derivative and Their Conversion into Polymethoxyflavones,
Microwave 2004 International Symposium on Microwave Science and Its Application to Related Fields, 386-387, Takamatsu, Jul. 2004.
25. Masao Tsukayama, Yuusuke Kiroku, Yasuhiko Kawamura and Masaki Nishiuchi :
Synthesis of Alkynylphenol Derivatives and Their Conversion into Heterocyclic Compounds under Microwave Irradiation,
Microwave 2004 International Symposium on Microwave Science and Its Application to Related Fields, 21-22, Takamatsu, Jul. 2004.
26. Masao Tsukayama, Yuusuke Kiroku, Mamoru Kawamura and Yasuhiko Kawamura :
Synthesis of o-Alkynylphenols and a,b-Unsaturated Ketones and Conversion into Heterocyclic Compounds under Microwave Irradiation,
International Symposium on Microwave Science and Its Application to Related Fields, 226-227, Tokyo Nara, Nov. 2002.
27. Masao Tsukayama, Yuusuke Kiroku, Yasuhiko Kawamura and Daisuke Suzuki :
Synthesis of a,b-Unsaturated Ketones and Heterocyclic Compounds under Microwave Irradiation,
International Symposium on Microwave Science and Its Application to Related Fields, 100-101, Tokyo, Nara, Nov. 2002.
28. Yasuhiko Kawamura, Takahiro Abe and Masao Tsukayama :
One- and Two-Way Geometrical Isomerizations of 1,1-Diarylketone Oxime O-Methyl Ethers Induced by Photosensitized Electron Transfer,
The 3rd International Conference on Advanced materials, Development and Performances, Daegu, Oct. 2002.
29. Yasuhiko Kawamura, Yasuyuki Akai and Masao Tsukayama :
Combinatorial Synthesis of Exohedrally Modified Fullerene Derivatives,
The 3rd International Conference on Advanced materials, Development and Performances, Daegu, Oct. 2002.
30. Yasuhiko Kawamura, Takaaki Ishiduka and Masao Tsukayama :
One-Way Geometrical Isomerization of 1,1-Diarylethenes Induced by Photosensitized Electron Transfer,
The 3rd International Conference on Advanced materials, Development and Performances, Daegu, Oct. 2002.
31. Yasuhiko Kawamura, Masashi Maruyama and Masao Tsukayama :
Environmentally Benign Synthesis of Isoflavone Derivatives Using Polymer-Supported Hypervalent Iodine(III) Reagent,
The 3rd International Conference on Advanced materials, Development and Performances, Daegu, Oct. 2002.
32. Yasuhiko Kawamura, Masashi Maruyama, Masaki Nishiuchi and Masao Tsukayama :
Oxidative Rearrangement of 2'-Hydroxychalcones to Isoflavones Using Hypervalent Iodine(III) Reagent,
18th International Congressof heterocyclic Chemistry, 542, Yokohama, Aug. 2001.
33. Yasuhiko Kawamura, Yasuyuki Akai, Masaki Nishiuchi and Masao Tsukayama :
Thermal Stability and Improved Synthesis of Fulleropyrrolidine Using Polymer-Supported Azomethine Ylide,
18th International Congress of Heterocyclic Chemistry, 541, Yokohama, Aug. 2001.
34. Yasuhiko Kawamura, Koichi Takeda, Masaki Nishiuchi and Masao Tsukayama :
Fulvalene Formation via a Reaction of Nucleophilic Carbenes with Buckminsterfullerene or Electron Acceptors,
18th International Congress of Heterocyclic Chemistry, 430, Yokohama, Jul. 2001.
35. Yasuhiko Kawamura, Kazuyuki Akaishi, Sayaka Sato, Masaki Nishiuchi and Masao Tsukayama :
Dipolar Cycloaddition of Mesoionic Compounds with Buckminsterfullerene: Intriguing Thermal and Photochemical Reactions of the Adducts,
18th International Congress of Heterocyclic Chemistry, 429, Yokohama, Jul. 2001.
36. Hironari Wada, Akihiro Oda, Masaki Nishiuchi, Yasuhiko Kawamura and Masao Tsukayama :
Regioselective Syntheses of Alkylpolyhydroxycoumaronochromone Derivatives,
2000 ICCPBAS, Vol.2000, Org., 979, Hawaii, U.S.A, Dec. 2000.
37. Yasuhiko Kawamura, Kazuyuki Akaishi, Masaki Nishiuchi and Masao Tsukayama :
Photoreactions of 1,3-dipolar cycloadducts of mesoionic compounds with buckminsterfullerene,
2000 International Chemical Congress of Pacific Basin Societies, Vol.INOR, 1056, Honolulu, Hawaii, USA, Dec. 2000.
38. Yasuyuki Akai, Yasuhiko Kawamura, Masaki Nishiuchi and Masao Tsukayama :
Kinetic Stability of Pyrrolidinobuckminsterfullerene,
2000 International Chemical Congress of Pacific Basin Societies, Vol.ORGN, 1201, Honolulu, Hawaii, USA, Dec. 2000.
39. Takaaki Ishiduka, Yasuhiko Kawamura, Masaki Nishiuchi and Masao Tsukayama :
Curious Oxygen Effect on Photosensitized Electron-Transfer Isomerization of 1,1-Diaryl-2-t-butylethene,
2000 International Chemical Congress of Pacific Basin Societies, Vol.ORGN, 541, Holulu, Hawaii, USA, Dec. 2000.
40. Kohichi Takeda, Yasuhiko Kawamura, Masaki Nishiuchi and Masao Tsukayama :
Reactions of Buckminsterfullerene with Arduengo's Carbenes: Formation of Carbene Dimers,
2000 International Chemical Congress of Pacific Basin Societies, Vol.ORGN, 1817, Honolulu, Hawaii, USA, Dec. 2000.
41. Yasuhiko Kawamura, Takaaki Ishiduka, Takahiro Abe, Masaki Nishiuchi and Masao Tsukayama :
Curious Oxygen Effect on Photosensitized Electron-Transfer Reactions of 1,1-Diaryl Substituted Double Bonds: One-Way Isomerizations of the Bonds,
The Fifth Japan-SINO Binational Symposium on Phototchemistry Symposium oh Phototchemistry, 105-106, Sapporo, Sep. 2000.
42. Masao Tsukayama, Oda Akihiro, Masaki Nishiuchi and Yasuhiko Kawamura :
Syntheses of Alkyl-2'-hydroxyisoflavone and Alkylpolyhydroxycoumaronochromone Derivatives,
The 8 th Asian Chemical Congress and Chemical Industry & Instrument Exhibition, Abstracts, 482, Taipei, Nov. 1999.
43. Yasuhiko Kawamura, Kazuyuki Akaishi, Kohichi Takeda, Masaki Nishiuchi and Masao Tsukayama :
Exohedral Modification of [60]Fullerene Employing Mesoionic Compounds and Arduengo's Carbenes,
Advanced Materials Development and Performance, 577-580, Tokushima, Japan, Nov. 1999.
44. Yasuhiko Kawamura, Kazuyuki Akaishi, Kohichi Takeda, Masaki Nishiuchi and Masao Tsukayama :
Attempted [2+1] and [3+2] Cycloadditions of an Arduengo's Carbene and Mesoionic Compounds with [60] Fullerene,
The Fourth International Symposium on Functional Dyes, 238, Osaka, Jun. 1999.
45. Masao Tsukayama, Masaki Nishiuchi, Li He and Yasuhiko Kawamura :
Syntheses of (3-Hydroxy-3-methylbutyl)isoflavones and Related Compounds,
The 7th Asian Chemical Congress, Vol.1997, 333, Hiroshima, May 1997.
46. Junko Motonaka, Yuji Mishima, Yoshitaka Katsumoto, Masao Tsukayama and Sanae Ikeda :
Potentiometric titration of 3-methyl-3-buten-1-ol utilizing the reaction with mercury (II) mitrate,
1995 International chemical Congress of Pacific Basin Societies, Honolulu, Dec. 1995.

Proceeding of Domestic Conference:

1. Ryoichi Ichikawa, Kazuo Matsuura, Tetsuo Fukadu, Shouko Yagi, Masao Tsukayama and Yasuhiko Kawamura :
スダチ搾汁残渣を利用した食品素材の開発,
日本食品科学工学会第57回大会, Sep. 2010.
2. Masao Tsukayama, Takahiro Sasaki, Kanji Yamamoto, Yasuhiko Kawamura and Ryoichi Ichikawa :
Microwave-assisted Rapid Extraction of Polyphenols from Peels of Citrus Plants,
第3回日本電磁波エネルギー応用学会シンポジウム, Vol.2009, Nov. 2009.
3. Kanji Yamamoto, Takahiro Sasaki, Yasuhiko Kawamura, Ryoichi Ichikawa and Masao Tsukayama :
Microwave-assisted Extraction of Flavones from Citrus yuko,
日本食品科学工学会第55回大会講演集, Sep. 2008.
4. Makoto Ishimoto, Yasuhiko Kawamura, Masao Tsukayama and Kiyotaka Onishi :
マイクロ波照射下でのβ-ジメチルアミノスチレン及びインドール誘導体の合成,
第1回日本電磁波エネルギー応用学会シンポジウム, Sep. 2007.
5. Takahiro Sasaki, Kanji Yamamoto, Yasuhiko Kawamura, Masao Tsukayama and Ryoichi Ichikawa :
マイクロ波加熱による柑橘類のメトキシフラボン迅速抽出と機能性成分への変換,
第1回日本電磁波エネルギー応用学会シンポジウム, Sep. 2007.
6. Kanjii Yamamoto, Takahiro Sasaki, Yasuhiko Kawamura, Masao Tsukayama and Ryoichi Ichikawa :
マイクロ波照射によるスダチポリフェノール成分の迅速抽出と有用成分への変換,
日本食品科学工学会 第54回大会, Sep. 2007.
7. Kanji Yamamoto, Takahiro Sasaki, Megumi Tsuji, Yasuhiko Kawamura, Ryoichi Ichikawa and Masao Tsukayama :
マイクロ波を用いる柑橘類の有用成分の迅速抽出および関連化合物への変換,
日本食品科学工学会第53回大会, Aug. 2006.
8. Yoshiaki Miyamoto, Masaki Nishiuchi, Yasuhiko Kawamura and Masao Tsukayama :
Diastereoselective 1,3-Dipolar Cycloadditions of O-Silyl Nitronate by Using b-Nitro Alcohols as a Dipole Precursor,
第31回複素環化学討論会講演要旨集, 93-94, Oct. 2000.
9. Junko Motonaka, 高石 佳樹, 三島 有二, Masao Tsukayama and 池田 早苗 :
電位差滴定法によるサフロールの定量,
第57回分析化学討論会, May 1996.

Et cetera, Workshop:

1. Masao Tsukayama :
ポリフェノール誘導体の環境調和型全合成へのマイクロ波の利用,
高温高圧流体技術研究所 研究成果発表·特別講演会, 18-21, Jun. 2005.
2. Masao Tsukayama :
マイクロ波を用いる天然物·ポリフェノール誘導体の迅速全合成,
マイクロ波応用技術研究会 第7回, Dec. 2004.

Patent:

1. Yasuhiko Kawamura, Masao Tsukayama, Ryoichi Ichikawa, Kanji Yamamoto, Takahiro Sasaki and Megumi Tsuji : スダチチンおよびノビレチンの製造方法, 2007-45931, 2008-208064 (Sep. 2008).
2. Masao Tsukayama, Yasuhiko Kawamura, Makoto Ishimoto and Kiyotaka Ohnishi : エナミンおよびインドール誘導体の製造方法, 2007-240412, 2008-133260 (Jun. 2008).
3. Yasuhiko Kawamura, Masao Tsukayama, Ryoichi Ichikawa, Kanji Yamamoto, Takahiro Sasaki and Megumi Tsuji : スダチチンおよびノビレチンの製造方法, 2007-045931, .
4. Masao Tsukayama, Yasuhiko Kawamura, Makoto Ishimoto and Kiyotaka Ohnishi : エナミンおよびインドール誘導体の製造方法, 2006-295317, .
5. Yasuhiko Kawamura, Masao Tsukayama, Ryoichi Ichikawa, Kanji Yamamoto and Takahiro Sasaki : スダチチンおよびノビレチンの製造方法, 2007-045931 (Feb. 2007), (Nov. 2012), 5119397 (Nov. 2012).