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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Compounds Related to Acridine. XIII. Reactions of 9-Vinyl- and 9-Ethynylacridine with C,N-Diarylnitrones
Otohiko Tsuge,Akiyoshi Torii +1 more
TL;DR: The reaction of 9-vinylacridine (1) with C,N-diarylnitrones (2) in xylene under reflux afforded 5-(9-acridinyl)-2,3diarylisoxazolidines (4) and/or 9-acricridinyl styryl ketones (5) as mentioned in this paper.
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Studies of Acenaphthene Derivatives. XX. The Reactions of Benzylideneacenaphthenones with Sulfonium Ylides
Otohiko Tsuge,Ichiro Shinkai +1 more
TL;DR: In this article, the reactions of benzylidene-acenaphthenones with sulfonium ylides were studied extensively, and the products obtained in the latter reactions were established to be cis-cyclopropyl compounds on the basis of NMR spectral studies.
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Reactions of 2-methylenebenzothiazolines with methylenecyclopropenes.
TL;DR: In this paper, reactions of 2-methylene-3-phenacylbenzothiazoline and 3-benzyl-2-methylenzothia-oline with methylenecyclopropenes gave a variety of products, cross-conjugated systems, spiro-cyclopentafurans and/or cyclopentabenzothiazines.
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Stereoselective (3 + 2) cycloaddition reaction of pyridinium and thiazolium methylides to electron-deficient olefinic dipolarophiles
TL;DR: Les cycloadditions dipolaires 1,3 de pyridiniomethanures et d'α-furoyl thiazoliomethanure (ylures d'azomethine) sur des maleimides ou le maleate de dimethyle se font par une approche endo des antiylures sur les dipolarophiles: obtention of pyrrolo [3,4-a] indolizinediones, de Pyrrolon [3',4'-3, 4]-indoliz
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Stereochemical features of cycloaddition of heteroaromatic n-ylides. selective participation of the anti and syn ylides
TL;DR: In the cycloaddition of heteroaromatic N-ylides to symmetrically substituted trans olefins, the anti ylide exclusively participates if the y lide is carbonyl-stabilized, while the syn ylides does if it has a substituent of non-carbonyl type as discussed by the authors.