Pyrethroid intermediates and process
US4473709A · kind A · utility
5Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1980 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jul 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel N,N,N-trimethyl-[1,1'-biphenyl]-2-methanaminium compound is subjected to a rearrangement reaction to give a 3-dimethylaminomethyl-2-methyl-[1,1'-biphenyl] compound which is then converted to the corresponding 3-halomethyl-2-methyl-[1,1'-biphenyl] compound. The halomethyl compound is an intermediate for pyrethroid and related insecticides having the alcohol moiety derived from a 2-methyl-[1,1'-biphenyl]-3-methanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.