Cyclopropanation of olefins
US4472313A · kind A · utility
4Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1982 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Sep 20, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/347
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a method of converting ethylenically unsaturated units of an olefinic substrate to corresponding cyclopropanyl units, comprising treating the olefinic substrate, in an ether medium, with zinc and diiodomethane and a catalytic amount of a metallo-hydride reducing agent. Preferred substrates are olefinic fatty acids or their functional derivatives, e.g. oleic acid esters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.