New Gilman-type lithium cuprate from a copper(II) salt: synthesis and deprotonative cupration of aromatics
作者:Tan Tai Nguyen、Floris Chevallier、Viatcheslav Jouikov、Florence Mongin
DOI:10.1016/j.tetlet.2009.09.100
日期:2009.12
including heterocycles (anisole, 1,4-dimethoxybenzene, thiophene, furan, 2-fluoropyridine, 2-chloropyridine, 2-bromopyridine, and 2,4-dimethoxypyrimidine) was realized in tetrahydrofuran at room temperature using the Gilman-type amido-cuprate (TMP)2CuLi in situ prepared from CuCl2·TMEDA through successive addition of 1 equiv of butyllithium and 2 equiv of LiTMP. The intermediate lithium (hetero)arylcuprates