HERBICIDE INTERMEDIATE O-NITROPHENYL CYCLOPROPYL KETONE AND A METHOD FOR THE PREPARATION THEREOF

摘要

There is provided ~-nitrophenyl cyclopropyl ketone, a key intermediate in the manufacture of the crop-selective, herbicidal agent 1-([~-(cyclopropyl- carbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyri- midinyl)urea and a method for the preparation of said ketone from dihydro-3-acetyl-2(3H)-furanone and ~- nitrobenzoyl halide.