Reactions of [FeL 2(CH 3CN) 2](PF 6) 2 (L = N-pyrimid-2-ylimidazol-ylidene) with N-, P-, O-, and S-donors and its catalytic activity

Abstract

Reactions of [FeL 2(CH 3CN) 2] 2+ (L = N-pyrimid-2-ylimidazolylidene) with various N-, P-, O-, and S-donors were investigated. By replacing the labile acetonitrile, various iron-NHC complexes containing additional N-, P-, O-, and S-ligands were prepared. All the iron-NHC complexes were fully characterized by NMR spectroscopy and X-ray crystallography. [FeL 2(CH 3CN) 2] 2+ could efficiently catalyze the coupling reactions of various Grignard reagents with heteroaryl bromides or chlorides. © 2012 The Author(s).