Takehiko Goto

First direct synthesis of 4,8-dialkylbenzo[1,2-d;4,5-d′]bis[1,2,3]trithioles and 6,10-dialkyl[1,2,3]trithiolo[5,4-h]benzopentathiepins from 1,4-dialkyl-2,3,5,6-tetrabromobenzenes

Abstract New cyclic polysulfides, 4,8-dialkylbenzo[1,2-d;4,5-d′]bis[1,2,3]-trithioles ( 2 ) and 6,10-dialkyl[1,2,3]trithiolo[5,4-h]benzopentathiepins ( 3 ), were directly synthesized by nucleophilic substitution of 1,4-dialkyl-2,3,5,6-tetrahalobenzenes ( 1 ) with elemental sulfur in liquid ammonia.

Chemistry on benzopentathiepin reactions of benzopentathiepin with aromatic compounds in the presence of lewis acid

Benzopentathiepin (BPT) reacted with many aromatic compounds such as benzene, 1,4-dimethylbenzene, and naphthalene in the presence of Lewis acid to give various thianthrenes in moderate yields. BPT was found to serve as a 1,4-dication synthon

NAD(P)+-NAD(P)H Model. 46. Kinetic study on the reduction with a sulfur-containing NAD(P)H model

Abstract Kinetics on the reduction with an NAD(P)H model bearing a divalent sulfur atom in the N-alkyl substituent has been studied. The sulfur atom retards the electron-transfer process.