作者:Josiah J. Newton、Robert Britton、Chadron M. Friesen
DOI:10.1021/acs.joc.8b02260
日期:2018.10.19
Here we report a convenient synthesis of thionoesters by base-catalyzed transesterification. Benzyl and alkyl thionobenzoates and thionoheterobenzoates were efficiently prepared using various alcohols catalyzed by the corresponding sodium alkoxide. This methodology features a broad substrate scope, good to excellent yields, short reaction times, while simultaneously driving the reaction toward completion
在这里,我们报告通过碱催化的酯交换反应方便地合成硫代磺酸酯。使用由相应的醇钠催化的各种醇可有效地制备苄基和烷基硫代苯甲酸酯和亚硫杂苯甲酸酯。该方法的特点是底物范围宽,收率高至优异,反应时间短,同时通过除去甲醇副产物使反应接近完成。我们还报告了少量硫代苯甲酸酯转化为相应的α,α-二氟苄基醚的过程,以证明醇类转化为二氟苄基或二氟杂苄基醚的过程可证明对药物化学中的铅优化有用。