Pyridazinone derivatives as intermediates of herbicides

摘要

This invention provides pyridazinone derivatives given in the general formula: <CHEM> Äwherein, R<100> represents hydrogen, halogen or C1-C3 alkyl, R<101> represents C1-C3 haloalkyl and R<102> represents hydrogen or C1-C3 alkylÜ which are intermediates in the production of compounds having excellent herbicidal activity.