The unusual influence of hetaryl groups on the direct conversion of some secondary alcohols into thiols with Lawesson’s reagent: elucidation of the reaction mechanism
作者:Grzegorz Mlostoń、Róża Hamera-Fałdyga、Małgorzata Celeda、Anthony Linden、Heinz Heimgartner
DOI:10.1080/17415993.2017.1313257
日期:2017.9.3
ABSTRACT A series of hetaryl-substituted methanols were used for direct conversion into the corresponding thiols by treatment with Lawesson’s reagent in boiling toluene. Unexpectedly, the respective sulfides were formed exclusively. In the case of chiral alcohols, the sulfides were obtained as 1:1-mixtures of meso- and dl-diastereoisomers. In contrast to hetaryl-substituted alcohols, the analogous
摘要一系列杂芳基取代的甲醇通过在沸腾的甲苯中用劳森试剂处理直接转化为相应的硫醇。出乎意料的是,各自的硫化物仅形成。在手性醇的情况下,硫化物作为内消旋和 dl-非对映异构体的 1:1 混合物获得。与杂芳基取代的醇相反,适用于二苯甲醇的类似方案导致预期的仲硫醇和双(二苯甲基)三硫代膦酸酯的混合物。最后,分别与二茂铁基(苯基)甲醇和二茂铁基甲醇的类似反应以良好的产率得到相应的硫醇。图形概要