Late transition metal catalysts for olefin oligomerizations
US8461072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Apr 6, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a series of novel late transition metal catalysts for olefin oligomerization, the catalysts demonstrating high activity and selectivity for linear α-olefins. The catalysts contain a Group-8, -9, or -10 transition metal, M, excluding palladium; an ancillary ligand comprising: a terminal amine comprising two independently selected hydrocarbyl radicals, R1 and R2; a terminal phosphine comprising two independently selected hydrocarbyl radicals, R3 and R4; and a hydrocarbyl bridge, Y, comprising a backbone wherein the hydrocarbyl bridge connects between the terminal amine and the terminal phosphine and wherein the backbone comprises a chain that is four or more carbon atoms long; and an abstractable ligand, X. For example this invention relates to a composition of matter with the following formula:wherein M, R1, R2, R3, and R4, Y, and X are as defined above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.