Cyclopropanation in the reaction of [M(CO)3Tp]– [M = Mo, W; Tp = hydridotris(pyrazolyl)borate] with I(CH2)3I and the insertion of isocyanide into metal–acyl bonds
Abstract
Treatment of I(CH2)3I with anions [M(CO)3Tp]– (M = Mo, W) leads to an η2-acyl cyclopropanation product M(CO)2{η2-C(O)(c-C3H5)}Tp which decarbonylates to give π-allyl complexes and reacts with CNBut by formal insertion of isonitrile into the metal–acyl bond.