nan Hiroshi

Novel Oxidative Ring Contraction of Dihydroselenopyrans to Selenophenes.

Vinyl Radical Generation with Selenoborane and Its Application to Cyclization Reaction of Enynes.

Generation of [1,2,4]Triazolo [1,5-a]pyrimidine N-Ylides and Their Ring Transformation Reaction.

Synthesis and Thermal Transformation of Stable Monocyclic λ^4-Thiabenzenes.

Generation and Reactions of Butadienylthionium Ions from 2-Vinylcyclopropyl Sulfoxides under Pummerer Conditions

Meyer-Schuster Rearrangement of γ-Sulfur-substituted Propargyl Alcohols : A Convenient Synthesis of α, β-Unsaturated Thioesters

Novel Benzoyl Migration of the Intermidiary 1 : 1 Adducts of 1,3-Dipolar Cycloaddition of Thiazolo [3,2-b][1,2,4]triazolium N-Phenacylides with Dimethyl Acetylenedicarboxylate.

Reactions of 9-Substituted 9-Thia-10-azaphenanthrenes with Electrophiles.

A Useful Synthetic Method for α-Cyano Selenides.

Synthesis of Medium-sized Cyclic Sulfides and Selenides by Crosspiece C-X Bond Cleavage of Bicyclic Onium Salts bearing a Bridgehead Sulfur or Selenium Atom.