Unsaturated esters and method of preparing them
US4293500A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Mar 4, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/587
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New esters are provided by reaction of an ester of the formula: ##STR1## in the presence of a compound of rhodium and an alcohol with a 1,3-butadiene of the formula: ##STR2## in which R.sub.1 represents an alkyl radical having from about 1 to 6 carbons atoms, PA1 R.sub.2, R.sub.3, R.sub.5, R.sub.8 and R.sub.9, which are identical or different, are a hydrogen atom or an alkyl radical having from about 1 to 3 carbon atoms. PA1 R.sub.4, R.sub.6, and R.sub.7 represent a hydrogen atom or an alkyl radical having from about 1 to 3 carbon atoms, at least one of them being a hydrogen atom, PA1 R.sub.10, R.sub.11, R.sub.12, and R.sub.13 represent a hydrogen atom or an alkyl radical having from about 1 to 3 carbon atoms, at least one of them being a hydrogen atom, PA1 R.sub.14, R.sub.15, R.sub.16, and R.sub.17, which are identical or different, each represents a hydrogen atom or an alkyl radical. These new esters can be used as intermediates for the preparation of alcohols after hydrogenation and hydrogenolysis and for the preparation of soaps after hydrogenation and saponification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.