Visible-light-promoted oxidative difunctionalization of alkenes with sulfonyl chlorides to access β-keto sulfones under aerobic conditions
作者:Teng-fei Niu、Jing Cheng、Chang-li Zhuo、Ding-yun Jiang、Xing-ge Shu、Bang-qing Ni
DOI:10.1016/j.tetlet.2017.08.013
日期:2017.9
A mild, practical and efficient strategy to prepare β-keto sulfones has been developed by visible light promoted reactions. This reaction involves Ir(ppy)2(dtbbpy)PF6 catalyzed direct funcationalization of alkenes with sulfonyl chlorides under mild conditions. Air was used as oxidant without any additives. The transformation affords the corresponding products in moderate to high yields.
Visible-light-induced direct oxysulfonylation of alkynes with sulfonyl chlorides and HCl
作者:Tengfei Niu、Dingyun Jiang、Bangqing Ni
DOI:10.1016/j.tetlet.2017.09.083
日期:2017.11
efficient strategy to prepare β-keto sulfones has been developed by visible-light-induced reactions. This reaction involved Ir(dtbbpy)(ppy)2PF6-catalyzed direct functionalization of alkynes with sulfonylchloride and HCl using air as the oxidant. HCl not only acted as a hydrogen source in the proton transfer process, but also played a vital role in the reaction process.