Process for the preparation of vinylcyclopropane derivatives
US4252739A · kind A · utility
13Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Aug 20, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C255/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yields. The process involves reacting an alkylating agent and an activated methylene compound in the presence of an onium compound, an alkali metal compound and water, which while only necessary in trace amounts can be present in substantial quantities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.