Substitution Reactions of Potassium Tetracarbonylhydridoferrate with Phosphanes. Effect of the Stereoelectronic Properties of the Phosphane

Abstract

Abstract Ligand substitutions on transition metal complexes have attracted much attention, both for the synthesis of new heteroleptic complexes and for the study of reaction mechanisms.1 In this respect, carbonyl metals have been particularly studied.2 The reaction mechanisms that have been evidenced, or proposed, are of the same type as those involved in classical organic chemistry for the nucleophilic substitutions at carbon. These studies, however, are limited to neutral transition metal carbonyl complexes. To the best of our knowledge, the only reported substitution reaction on an anionic transition metal carbonyl complex concerns the reaction of phosphanes or activated alkenes with [Co(CO)4]−3.