Cyclic ammonium salts of dithiocarbamic acid: stable alternative reagents for the synthesis of <i>S</i>-alkyl carbodithioates from organyl thiocyanates in water
作者:Kinkar Biswas、Sujit Ghosh、Pranab Ghosh、Basudeb Basu
DOI:10.1080/17415993.2016.1166225
日期:2016.7.3
conditions. Here, we report an efficient and practical method for the preparation of libraries of carbodithioate esters from organyl thiocyanates by reacting with cyclic amine-based dithiocarbamic acid salts in water. The protocol is found to be applicable in general to various thiocyanates such as benzyl/aroyl methyl/cinnamyl and so on. Other notable features include no by-products such as disulfides, metal-
摘要 碳二硫代酸酯是重要的功能性有机硫化合物,广泛应用于制药、农用化学品和材料科学等多个领域。常见的制备方法包括烷基卤化物、二硫化碳和碱在无金属和金属催化条件下的反应。然而,有机硫氰酸酯以前没有被探索过,可能是因为它们在碱性条件下转化为有机二硫化物。在这里,我们报告了一种通过与基于环胺的二硫代氨基甲酸盐在水中反应,从有机硫氰酸酯制备碳二硫代酯库的有效且实用的方法。发现该方案通常适用于各种硫氰酸酯,例如苄基/芳酰基甲基/肉桂基等。其他显着特点包括无二硫化物等副产品,无金属和无碱的水性条件,最终容易且近乎定量地形成环胺基二硫代氨基甲酸盐作为稳定的替代试剂。图形概要