作者:Denis Koziakov、Axel Jacobi von Wangelin
DOI:10.1039/c7ob01572k
日期:——
We report a new method of metal-free alkoxycarbonylation. This reaction involves the generation of aryl radicals from arenediazonium salts by a very weak base (HCO2Na) under mild conditions. Subsequent radical trapping with carbon monoxide and alcohols gives alkyl benzoates. The conditions (metal-free, 1 equiv. base, MeCN, r.t., 3 h) tolerate various functional groups (I, Br, Cl, CF3, SF5, NO2, ester)
我们报告了一种新的无金属烷氧基羰基化方法。该反应涉及在温和的条件下通过非常弱的碱(HCO 2 Na)由槟榔鎓盐生成芳基。随后用一氧化碳和醇进行自由基捕获,得到苯甲酸烷基酯。条件(无金属,1当量碱,MeCN,rt,3 h)可耐受各种官能团(I,Br,Cl,CF 3,SF 5,NO 2,酯)。机理研究表明自由基芳族取代机理的运行。