Easy S-Alkylation of Arylthioureas and 2-Mercaptobenzothiazoles Using Tetraalkylammonium Salts under Transition-Metal-Free Conditions
作者:Xiao-Hu Xu、Er-Jun Hao、Zhen Shi、Zhi-Bing Dong
DOI:10.1021/acs.joc.2c00728
日期:2022.8.5
A highly-efficient and practical method for S-alkylation of arylthioureas was reported. Using tetraalkylammonium salts as alkylation reagents, a series of 68 S-substituted aryl-isothioureas were obtained in good to excellent yields under transition-metal-free conditions. The protocol features simple performance, broad functional group tolerance, good to excellent yields, and easily available starting
报道了一种高效实用的芳基硫脲S-烷基化方法。使用四烷基铵盐作为烷基化试剂,在无过渡金属条件下以良好至优异的收率获得了一系列 68 S-取代的芳基异硫脲。该协议具有简单的性能、广泛的官能团耐受性、良好的产量以及易于获得的起始材料,显示出制备多种生物或药物活性化合物的潜在合成价值。