We report herein the efficient hydro-oxycarbonylation of symmetrical and unsymmetrical internal alkynes with carboxylic acids in water at 60 °C, employing the catalytic system [AuCl(PPh3)]/AgOAc (5 mol%). This simple and eco-friendly protocol allows for the synthesis of a wide variety of trisubstituted enol esters (37 examples) in high yields and with complete Z-stereoselectivity. The use of microwave
我们在这里报告了采用催化体系[AuCl(PPh 3)] / Ag
OAc(5 mol%)在60°C
水中的对称和不对称内部
炔烃与
羧酸的有效加
氢氧羰基化反应。这种简单且环保的方案可以高收率和完全的Z-立体选择性合成多种三取代的
烯醇
酯(37个实例)。还已经评估了使用微波辐射作为替代能源。