申请人:Ishihara Sangyo Kaisha Ltd.
公开号:US04383116A1
公开(公告)日:1983-05-10
4-Benzoyl-5-hydroxypyrazoles useful as herbicidal active ingredients or their intermediate are produced by a condensation of a pyrazolone and a benzotrichloride followed by a hydrolysis reaction with industrial advantages.
4-苯甲酰基-5-羟基吡唑酮作为除草剂活性成分或它们的中间体,通过吡唑酮和苯三氯甲烷的缩合反应,然后进行水解反应来生产,具有工业优势。