Nucleophilic Substitution on Dialkoxy Bisulfides. II. Reactions with Hydrazine Derivatives
作者:Hiroaki Kagami、Shinichi Motoki
DOI:10.1246/bcsj.52.3463
日期:1979.11
Diethoxy disulfide (1) reacted with arylhydrazines to give arylbenzenes, diaryl sulfides, and aryl ethoxy tetrasulfides. The reaction of 1 with hydrazobenzenes gave azobenzenes in quantitative yields. The treatment of 1 with 1,5-diphenylthiocarbonohydrazide or 1,5-diarylthiocarbazones afforded 2,3-diaryltetrazolium-5-thiolates.
Optimization of the Synthesis of Symmetric Aromatic Tri- and Tetrasulfides
作者:Eli Zysman-Colman、David N. Harpp
DOI:10.1021/jo0265481
日期:2003.3.1
The reaction of aromatic thiols with sulfur dichloride and sulfur monochloride to form the corresponding aromatic trisulfides, 2a-d, and tetrasulfides, 3a-d, has been optimized with respect to yield and purity. The use of pyridine as an amine base and the use of freshly distilled sulfur monochloride (S2Cl2) serve as important alterations to the synthetic method. Their physical properties have been characterized, revealing some discrepancies with the literature.