Diaryl ethers and processes for their preparation and herbicidal and desiccant compositions containing them
US6333296A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Diaryl ether compounds useful in the control of weeds are described. An exemplary compound is represented by the general formula (I): ##STR1## In this formula Q is represented by Q.sub.9 : ##STR2## X and Y represent a hydrogen atom, halogen atom, cyano group, nitro group or (C.sub.1-6)haloalkyl group. A.sub.1 and A.sub.2 are independently oxygen or sulfur atoms. R.sub.9 and R.sub.10 represent a hydrogen atom, a (C.sub.1-6)alkyl group, an acyl group, or a (C.sub.1-6)alkylsulfonyl group; or R.sub.9 and R.sub.10 may form a ring consisting of polymethylene, (CH.sub.2).sub.m groups, where m is an integer of 2, 3, 4 or 5, together with the nitrogen atom of NR.sub.9 R.sub.10, which may or may not have a (C.sub.1-6)alkyl substituent. Methods of making the compounds are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.