alk-l-ynyltrimethylstannane results in the rapid formation of trimethylstannyl acetate and an unstable species, believed to be the corresponding alk-l-ynyllead triacetate, which can effect the rapid α-alkynylation of β-dicarbonyl compounds and nitronate salts.
将四
乙酸铅添加到烷基-1-炔基
三甲基锡烷的
氯仿溶液中会迅速形成
乙酸三甲基锡烷基酯和不稳定的物质,据信是相应的烷基-1-炔基三
乙酸铅,可导致β的快速α-炔基化-二羰基化合物和
硝酸盐。