Triphos polymer compounds and acylation agent useful in their preparation
US6441230B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Material and process of preparing such material, of the formula where R1 is a linker and C(R2P(R3)2)3 group is a triphos moiety; and wherein R1 is selected from branched and linear alkyl group and alkyl carbonyl group optionally substituted with functional groups comprising carbonyl, alkoxy, hydroxy, amino, nitro, carboxylic or sulfonic acid and esters or amides thereof; R2 are methylene (CH2) or substituted methylene groups; R3 are linear or branched alkyl or phenyl or substituted phenyl groups; polymer is any polymer containing aromatic groups, comprising polystyrene, poly-vinyl pyridine, poly pyrrole, poly pyrrolidone or derivatives thereof. The material impregnated with a transition metal has catalytic properties. The preparation of the material involves the use of an acylating agent having the formula CF3SO3C(O)C(H2X)3 or an anhydride thereof, where X is a halogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.