A chromium-catalyzed reductive allylic defluorinative acylation of trifluoromethyl-substituted alkenes with acyl oxime esters has been developed, allowing for efficient synthesis of various ketones bearing a gem-difluoroalkene unit.
Herein we report a chromium-catalyzed reductive allylic defluorinative acylation of trifluoromethyl substituted alkenes with acyl oxime esters as the acylating agents, allowing for efficient synthesis of various ketones bearing a gem-difluoroalkene unit. The preliminary mechanistic investigations reveal that low-valent chromium species promote both the reduction of acyl oxime esters and the rate-limiting beta-fluoro elimination while the additive potassium phosphate suppresses the undesired hydroacylation side reaction. A chromium-catalyzed reductive allylic defluorinative acylation of trifluoromethyl-substituted alkenes with acyl oxime esters has been developed, allowing for efficient synthesis of various ketones bearing a gem-difluoroalkene unit.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据