General Preparation of Cyclopentadienyl Molybdenum Dicarbonyl η³-2-Alkylidene Cyclobutanonyl Complexes

Abstract

Cyclopentadienylmolybdenumdicarbonyl anion reacts with a variety of allenic electrophiles to produce η3-2-alkylidene cyclobutanoyl complexes. Three of these complexes have been characterized by X-ray crystallography, and the 2-alkylidene cyclobutanone has been removed and recovered from one complex via oxidative demetalation.