Carbanions as Intermediates in the Formation of Grignard Reagents
作者:Gerard P. M. van Klink、Henricus J. R. de Boer、Gerrit Schat、Otto S. Akkerman、Friedrich Bickelhaupt、Anthony L. Spek
DOI:10.1021/om011083a
日期:2002.5.1
convincingly explained by invoking the intermediate formation of the highly reactive carbanion R:-, which may in some cases be slightly stabilized by formation of an (intra- or intermolecular) stannate (or silicate) complex. Another serious candidate for such migrations would have been the radical R•, the occurrence of which is well-documented in Grignard reactions. However, this alternative route could