Herbicide intermediate o-nitrophenyl cyclopropyl ketone and a method for
申请人:American Cyanamid Company
公开号:US05364968A1
公开(公告)日:1994-11-15
There is provided o-nitrophenyl cyclopropyl ketone, a key intermediate in the manufacture of the crop-selective, herbicidal agent 1-[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidiny l)urea and a method for the preparation of said ketone from dihydro-3-acetyl-2(3H)-furanone and o-nitrobenzoyl halide.
Herbicide intermediate o-nitrophenyl cyclopropyl ketone and a method for the preparation thereof
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0577945A1
公开(公告)日:1994-01-12
There is provided o-nitrophenyl cyclopropyl ketone, a key intermediate in the manufacture of the crop-selective, herbicidal agent 1-[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidinyl)urea and a method for the preparation of said ketone from dihydro-3-acetyl-2(3H)-furanone and o-nitrobenzoyl halide.