Fluoroalkoxy-aminopyrimidines
US4480101A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Jul 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D521/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described novel intermediates for herbicides of the sulfonylurea class, which have the general formula I ##STR1## wherein E is nitrogen or the methine group, PA1 R.sub.1 is halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkyl, --NR.sub.3 R.sub.4 or alkoxyalkyl having at most 4 carbon atoms, and PA1 R.sub.2 is a group --G--CF.sub.2 --T, where G is oxygen or sulfur, T is hydrogen, --CHClF, --CHBrF, --CHF.sub.2 or --CHF--CF.sub.3, R.sub.3 is hydrogen, methyl or ethyl, and R.sub.4 is hydrogen, methyl, ethyl, methoxy, ethoxy or methoxymethyl, with the proviso that R.sub.1 is not C.sub.1 -C.sub.4 -alkyl when simultaneously E is nitrogen and G is oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.