Preparation of chlorodivinylborane transition metal complexes and their nucleophilic substitution at boron
作者:G.E. Herberich、E.A. Mintz、H. Müller
DOI:10.1016/s0022-328x(00)90530-8
日期:1980.3
boron trichloride and dimethydivinyltin, reactions under photochemical conditions with ironpentacarbonyl and cyclopentadienyldicarbonylcobalt to give (η5-chlorodivinylborane)tricarbonyliron (II) and (η5-chlorodivinylborane)cyclopentadienylcobalt (III), respectively, in high yield. Complexes II and III readily undergo base-assisted nucleophilicsubstitution at boron.
(CH3)2Sn(CHCH2)2·2 CuCl, and (C4H9)Sn(CHCH2)2·2 CuCl are prepared by allowing the neat vinylmetallic to react with copper(I) chloride. The new π-complexes are characterized by elemental analysis and by IR and NMR spectroscopy. A bonding schme is proposed to explain the unusual liability of these complexes.