Gilman-Type versus Lipshutz-Type Reagents: Competition in Lithiocuprate Chemistry

J Haywood, JV Morey, AEH Wheatley, CY Liu…

Index: Usui, Shinya; Hashimoto, Yuichi; Morey, James V.; Wheatley, Andrew E. H.; Uchiyama, Masanobu Journal of the American Chemical Society, 2007 , vol. 129, # 49 p. 15102 - 15103

Full Text: HTML

Citation Number: 31

Abstract

Attempts to generate Lipshutz-type cuprates of the form R (TMP) Cu (CN) Li2 (R= alkyl, aryl) lead to the exclusion of LiCN and yield the Gilman-type monomers R (TMP) CuLi. In contrast to homoleptic bis (amido) cuprates, where Lipshutz-type structures dominate, new experimental and theoretical data point to a facile equilibrium between Lipshutz-and Gilman- type structures.