Process for the preparation of vinyl carbamates
US4772695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1983 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Sep 19, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D489/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of vinyl carbamates of formula I ##STR1## is described which comprises heating an .alpha.-halogeno-carbamate of formula II ##STR2## in which X is a halogen atom at a temperature between 70.degree. and 250.degree. C. for a period of time between several minutes up to several hours. R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different. The process is applicable to a great variety of products in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 have different meanings. The process permits to prepare in a simple and economical fashion, vinyl carbamates, which have industrial value and novel vinyl carbamates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.