Directed oxidative coupling of thiols in the synthesis of unsymmetrical disulfides
作者:D. A. Burmistrova、I. V. Smolyaninov、N. T. Berberova
DOI:10.1007/s11172-020-2860-1
日期:2020.5
Oxidative coupling of two different thiols bearing aliphatic, alicyclic, aromatic, and hetero-aromatic moieties promoted by mild oxidizing agents, viz. , sterically hindered o -benzo(imino)-quinones, carried out in N -methylpyrrolidone at room temperature led to unsymmetrical disulfides. Among the studied oxidizers, the most active was 3,6-di- tert -butyl- o -benzoquinone, which, in contrast to 3,5-di-
由温和氧化剂促进的带有脂肪族、脂环族、芳香族和杂芳香族部分的两种不同硫醇的氧化偶联,即。在室温下在 N-甲基吡咯烷酮中进行空间位阻的邻苯并(亚氨基)-醌导致不对称的二硫化物。在所研究的氧化剂中,活性最强的是 3,6-二叔丁基邻苯醌,与 3,5-二叔丁基邻苯醌相反,它不参与迈克尔加成。在最佳反应条件下,目标不对称二硫化物的产率达到81%。