作者:Artem A. Zemtsov、Salavat S. Ashirbaev、Vitalij V. Levin、Vladimir A. Kokorekin、Alexander A. Korlyukov、Alexander D. Dilman
DOI:10.1021/acs.joc.9b02478
日期:2019.12.6
of free radicals from thiazolinium salts upon photocatalytic reduction is described. The thiazolinium salts are generated by treatment with methyl triflate of 2-mercaptothiazolines, which can be readily obtained from alkyl bromides and tosylates via a nucleophilic substitution reaction or by hydrothiolation of alkenes. Silyl enol ethers were used to trap the radicals, furnishing ketones after successive
描述了一种在光催化还原下由噻唑啉鎓盐产生自由基的方法。噻唑啉鎓盐是通过用2-巯基噻唑啉的三氟甲磺酸甲酯处理而产生的,其可以容易地从烷基溴化物和甲苯磺酸盐经亲核取代反应或通过烯烃的氢硫醇化而获得。甲硅烷基烯醇醚用于捕获自由基,在连续的单电子氧化和消除甲硅烷基阳离子后提供酮。