Regioselective magnesiations of functionalized arenes and heteroarenes using TMP<sub>2</sub>Mg in hydrocarbons
作者:Andreas Hess、Nurtalya Alandini、Hasret C. Guelen、Jan P. Prohaska、Paul Knochel
DOI:10.1039/d2cc03856k
日期:——
hydrocarbon-soluble magnesium amide TMP2Mg (TMP = 2,2,6,6-tetramethylpiperidyl). This base showed excellent properties for the regioselective magnesiation of various arenes and heteroarenes bearing ethyl esters and carbamates under very mild reaction conditions. Subsequent trapping with aryl iodides (Negishi cross-coupling) gave access to a range of highly functionalized valuable building blocks.
我们报告了一种新的烃溶性氨基镁 TMP 2 Mg (TMP = 2,2,6,6-四甲基哌啶基) 的制备。该碱在非常温和的反应条件下显示出优异的区域选择性放大各种芳烃和带有乙基酯和氨基甲酸酯的杂芳烃的性能。随后用芳基碘化物进行捕获(Negishi 交叉偶联)可以获得一系列高度功能化的有价值的构建块。