Process to prepare a multidentate phosphine compound
US6914161B2 · kind B2 · utility
3Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2002 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65683
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Multidentate phosphate compounds of formula (1) are prepared by reacting a 9-phosphabicyclononane, in the presence of an acid catalyst, with a 9-phospha-bicyclononane alkenylmonophosphine of formula (2), some of which, e.g., P-{2-(2-butenyl)}-9-phospha-bicyclononane, are novel compounds. The multidentate phosphine compounds of formula (1) and those of formula (3), are useful as ligands for transition metal catalysts in various types of reactions, such as, hydrogenation reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.