Olefin hydroformylation methods for obtaining branched aldehydes
US9790156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/822
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present technology relates to methods of hydroformylating allyl alcohol to 4-hydroxybutanal and 2-methyl-3-hydroxypropanal, comprising (i) admixing allyl alcohol with CO and H2 to form a starting material mixture, and (ii) reacting the starting material mixture in the presence of a catalyst under conditions capable of forming a product mixture comprising 4-hydroxybutanal and 2-methyl-3-hydroxypropanal, wherein the catalyst is a transition metal complex comprising a transition metal ion and a diphosphine ligand with a bite angle from about 70° to about 100°, and wherein the ratio of 4-hydroxybutanal to 2-methyl-3-hydroxypropanal in the product mixture is less than 1.5:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.