2-(2',2'-Dihalovinyl)-cyclobutanones and 2-(2',2',2'-trihaloethyl)-cyclobutanones
US4234517A · kind A · utility
1Cited by
1References
2Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 16, 1979 |
| Grant date | Nov 18, 1980 |
| Priority date | — |
| Expiry date | Mar 16, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/94
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel 2-(2',2'-dihalovinyl)-cyclobutan-1-ones and 2-(2',240 ,2'-trihaloethyl)-cyclobutan-1-ones of the formula ##STR1## are disclosed, wherein R.sub.1 represents --CH.dbd.CX.sub.2 or --CH.sub.2 --CX.sub.3, and X in each case represents chlorine or bromine, one of R.sub.2 and R.sub.3 represents methyl and the other represents hydrogen or methyl, or R.sub.2 and R.sub.3 together represent an alkylene group having 2 to 4 carbon atoms. The invention relates also to the production and the use of the said cyclobutanones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.