Pyrimidine derivatives and herbicides containing them
US6806230B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Aug 14, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D417/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pyrimidine derivatives having excellent herbicidal activities for crop plants and selectivity between crop plants and weeds, are presented. Pyrimidine derivatives represented by the following formula (I): wherein R1 is a hydrogen atom, an alkyl group, a haloalkyl group or the like; R2 is an alkyl group, a phenyl group which may be substituted, or the like; R3 is a hydrogen atom, an alkyl group, an alkynyl group or the like; R7 is a hydrogen atom, a halogen atom, an alkyl group or the like; R8 is a hydrogen atom, an alkyl group or the like, W is a —C(═Q) Z— group or a —SO2— group; Q is O or S; Z is O, S, a —C(R4)R5—, a —NR6 group or the like; each of R4 and R5 is a hydrogen atom, an alkyl group, an alkoxy group or the like; R6 is a hydrogen atom or an alkyl group; and Ar is a phenyl group which may be substituted, a pyridyl group which may be substituted, or the like, and herbicides containing such pyrimidine derivatives as active ingredients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.