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.
From symmetrical tetrasulfides to trisulfide dioxides <i>via</i> photocatalysis
作者:Kai Gong、Yilin Zhou、Xuefeng Jiang
DOI:10.1039/d1gc03242a
日期:——
achieved symmetrical tetrasulfides. Stern–Volmer analysis and radical quenching experiments demonstrated the occurrence of a single electron transfer between the photocatalyst and sulfinic acid. Bioactive molecules such as the antihypertensive drug captopril, allicin derivatives, amino acids and terpenes were efficiently and reversibly linked through sulfur–sulfur covalent bonds. Furthermore, flow-setup syntheses