Alkoxylation process using bimetallic oxo catalyst
US4689435A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Apr 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/03
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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).sub.n M--O--M'--O--M(OR).sub.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 of 3 if the adjacent M is tetravalent. The products are useful, for instance, as nonionic surfactants in detergent formulations. In certain preferred embodiments, the process yields a product having a very desirable distribution of alkylene oxide adducts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.