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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Anion radical-induced desilylation of organosilane. Reactions of benzylsilanes with aldehydes and related compounds in the presence of butyllithium or lithium metal
TL;DR: By the action of butyllithium or lithium metal in such polar aprotic solvent as DMF or HMPA, some benzylsilanes suffer from anion radical-induced desilylation forming benzyl carbanions which add to the aldehydes and related compounds as mentioned in this paper.
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Cycloaddition of New N-Unsubstituted Azomethine Ylides Generated from N-[(Trimethylsilyl)methyl]thiocarbamates, Synthetic Equivalents of Non-stabilized Alkoxy- or Alkylthionitrile Ylides.
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Triethylamine‐Mediated Generation of a Synthetic Equivalent of Parent Azomethine Imine by Condensation of Ethyl 3‐Benzylcarbazate with Paraformaldehyde.
TL;DR: A synthetic equivalent of parent azomethine imine is accessible by simple heating of ethyl 3-benzyl carbazate with paraformaldehyde under reflux in toluene in the presence of triethylamine, which effectively suppresses the undesired formation of imine dimers as discussed by the authors.
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Synthesis of 4‐((E)‐1‐Alkenyl)‐2‐hydroxybutanolides and (Z)‐4‐Alkylidene‐2‐butenolides Through Cycloadditions Using a Phosphorus‐Functionalized Nitrile Oxide
TL;DR: In this article, a sequence of cycloadditions of (diethoxyphosphinyl)acetonitrile oxide with α,β-unsaturated esters, the Raney Ni reduction of the resulting cycloadducts, the Horner-Emmons olefination, and the carbonyl reduction with sodium borohydride leads to 5]-(E)-1-alkenyl]-3-hydroxy-4,5-dihydro-2(3H)-furanones which can be converted into (Z)-5-