ARE BIDENTATE LIGANDS ALWAYS ACTING AS BIDENTATE? THE CASE OF GRIGNARD REAGENTS

摘要

Grignard reagents were prepared from nBuCl andtBuCl in toluene in the presence of one or less equivalents ofdimethoxyethane or N, N, N, N-tetramethylethylenediamine. Thebases solvate n-butylmagnesium chloride as bidentate and tert-butylmagnesium chloride as monodentate donors in conformitywith the steric requirements of the complexes.