Insecticides from dimethylmuconic acid
US4058605A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1975 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Jun 11, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/173
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel compounds having the formula: ##STR1## or mixtures thereof, wherein R.sub.1 and R.sub.2 are C.sub.1-20 hydrocarbyl groups which may be the same or different, or one of R.sub.1 and R.sub.2 may be hydrogen, and R.sub.3 and R.sub.4 are methyl or hydrogen, and may be the same or different, can be prepared by the reaction of an alkyl ester, preferably the methyl ester, of polymethylmuconic acid with (C.sub.2 H.sub.5 O).sub.2 PSSH, the reaction product of ethanol and phosphorus pentasulfide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.