Complexes and method for synthesis of group 6 organometallics, and use thereof in an olefin metathesis method

摘要

Novel group 6 organometallic compounds are obtained by reaction of at least one boron compound comprising at least one hydroxy, sulfhydryl or amino function with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.