O
Otohiko Tsuge
Researcher at Kyushu University
Publications - 405
Citations - 3568
Otohiko Tsuge is an academic researcher from Kyushu University. The author has contributed to research in topics: Cycloaddition & Michael reaction. The author has an hindex of 26, co-authored 405 publications receiving 3484 citations. Previous affiliations of Otohiko Tsuge include Kagoshima University & Sojo University.
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Preparation of 3-(2H-pyran-2-on-6-yl)indolizines and the diels-alder reactions with some olefinic and acetylenic dienophiles
TL;DR: The 3-substituted indolizines were prepared by 1,3-dipolar cycloaddition reactions of N-(2H-pyran-2-on-6-yl)methylpyridinium bromides 5a,b with dimethyl acetylenedicarboxylate (DMAD) as mentioned in this paper.
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Preparation of 5,5-dicyano- and 5-cyano-5-ethoxycarbonyl-5,6-dihydro-3,7-diphenyl-4H-1,2-diazepines and their halogenations
Kichinosuke Kamata,Otohiko Tsuge +1 more
TL;DR: In this paper, a condensation of α-bromoacetophenone azine with malononitrile and ethyl cyanoacetate in the presence of sodium ethoxide, respectively, gave pyridazines, diazanorcaradienes, 4,4,6,6-tetrachlorodihydrodiazepines, and/or a 4-chloropyrazole whose relative yields strongly depended upon the nature of 5substituents of the dihydrodiazepine as well as the reaction conditions.
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Pyrolysis of Deoxybenzoinketazines
TL;DR: 4-2,3,4,5-テトラアリールイミダゾールおよび3-5-ジフェニル-4-P-置換フェ £2,500,000-3,000,000 pounds (£1,800,000)
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Study of the DNA Interaction with Water-Soluble Cationic Fullerene Derivatives.
TL;DR: The cationic fullerene derivatives 1a−c are fairly well soluble in water and bind to calf thymus DNA due to the electrostatic interactions at the phosphate anion sites and the hydrophobic interactions in the grooves.
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Intramolecular oxidative coupling of brominated 2,4′-dihydroxydiarylmethanes. a biogenetic synthesis of thelepin and its analogs
TL;DR: Thelepin, which was isolated from the marine annelid Thelepus setosus, was first synthesized from thelephenol by these methods.