Substituted benzoyl cyclic enone, process for preparation, and herbicide
US5525580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C323/65
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds represented by general formula (I), herbicides or selective herbicides for paddy field containing said compounds as active ingredients, method of controlling growth of undesirable plants by applying the herbicides on places where control is desired. ##STR1## wherein A represents a --S(O)nR.sup.1 in which n is 0 or 2 and R.sup.1 represents a (substituted) lower alkyl; a cycloalkyl; a (substituted) benzyl; a (substituted) phenyl; or a --OR.sup.2 in which R.sup.2 represents a (substituted) phenyl; B represents a halogen, a nitro, a lower alkyl, or a lower alkylsulfonyl; D represents a hydrogen, a lower alkyl, a lower alkoxy, a lower alkoxymethyl, or a lower alkoxycarbonyl; E represents a halogen, a (substituted) lower alkoxy, a lower alkylthio, a (substituted) lower alkylsulfonyl, or a lower alkylsulfonyloxy. The herbicides of the present invention can prevent a wide variety of noxious weeds and further selectively prevent weeds on paddy field with considerably reduced phytotoxicities on rice plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.