Process for telomerization of butadiene using a mono-orthoalkoxy substituted catalyst
US9174905B2 · kind B2 · utility
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Key dates
| Filing date | Dec 14, 2011 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Apr 16, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5022
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the telomerization of butadiene comprises reacting 1,3-butadiene and an alkanol, in the presence of a catalyst promoter and an alkoxydimerization catalyst comprising a Group VIII transition metal and a triarylphosphine ligand, which includes one phenyl that is mono-ortho-alkoxy substituted and at least one other phenyl including at least one substituent that withdraws electrons from the phosphorus atom. The product includes an alkoxy-substituted octadiene, which may then be used to produce 1-octene. The catalyst shows improved stability, activity and selectivity toward the alkoxy-substituted octadiene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.