E
Eiji Shirakawa
Researcher at Kwansei Gakuin University
Publications - 202
Citations - 5275
Eiji Shirakawa is an academic researcher from Kwansei Gakuin University. The author has contributed to research in topics: Catalysis & Aryl. The author has an hindex of 40, co-authored 201 publications receiving 4996 citations. Previous affiliations of Eiji Shirakawa include Japan Advanced Institute of Science and Technology & Meiji University.
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tert-Butoxide-mediated arylation of benzene with aryl halides in the presence of a catalytic 1,10-phenanthroline derivative.
TL;DR: Sodium tert-butoxide mediates the coupling of aryl halides with benzene derivatives without the aid of transition metal catalysts but with a catalytic 1,10-phenanthroline derivative.
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Addition of Ureas to Arynes: Straightforward Synthesis of Benzodiazepine and Benzodiazocine Derivatives
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Indium-catalyzed annulation of 2-aryl- and 2-heteroarylindoles with propargyl ethers: concise synthesis and photophysical properties of diverse aryl- and heteroaryl-annulated[a]carbazoles.
Teruhisa Tsuchimoto,Hiromichi Matsubayashi,Masayoshi Kaneko,Yuta Nagase,Takuhiro Miyamura,Eiji Shirakawa +5 more
TL;DR: The development of the annulation with a wide substrate scope provided a unique opportunity to evaluate photophysical properties of a series of aryl- and heteroaryl-annulated[a]carbazoles, which were found to emit purple to green light in the visible region.
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Lipoxygenase-catalyzed oxygenation of arachidonylethanolamide, a cannabinoid receptor agonist
Natsuo Ueda,Kei Yamamoto,Shozo Yamamoto,Takashi Tokunaga,Eiji Shirakawa,Hisashi Shinkai,Masako Ogawa,Taku Sato,Ichiro Kudo,Keizo Inoue,Hiromasa Takizawa,Tatsuo Nagano,Masaaki Hirobe,Norio Matsuki,Hiroshi Saito +14 more
TL;DR: High-performance liquid chromatography, ultraviolet and mass spectrometry and nuclear magnetic resonance spectroscopy indicated that the lipoxygenases, which had been shown previously to be capable of oxygenating esterified polyunsaturated fatty acids, were also active with the arachidonylethanolamide.
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Asymmetric synthesis of β-hydroxy-α-alkylamino acids by asymmetric aldol reaction of α-isocyanocarboxylates catalyzed by chiral ferrocenylphosphine-gold(I) complexes
TL;DR: Aldol reaction of methyl α-isocyanocarboxylates (CNCH(R)COOMe: R = H, Me, Et, i -Pr) with benzaldehyde or acetaldehyde in the presence of 0.5-1.0 mol% of a chiral (aminoalkyl)ferrocenylphosphine-gold(I) complex gave optically active 4-methoxycarbonyl-4,5-dialkyl-2-oxazolines with high enantioselectivity in a quantitative