Alkoxylation process using bimetallic oxo catalyst

Abstract From the Canadian patent

Alkylene oxide adducts of organic compounds having an active hydrogen are prepared by a process in which an active hydrogen reactant and an alkylene oxide reactant are reacted in the presence of a catalytically effective amount of one or more bimetallic oxo compounds of the formula (RO)nM-O-M'-O-M(OR)n wherein each R is, (independently) an optionally-substituted organic moiety M' is a, divalent metal selected from the elements of Groups Va VIa, and, VIIa of the Periodic Table, each M is (independently) a trivalent or tetravalent metal, and each n is 2 if the adjacent M is trivalent or 3 if the adjacent M is tetravalent. The products are useful, for instance, as nonionic surfactants in …