发明名称 METHOD OF MANUFACTURING PYRIDAZINONE COMPOUND
摘要 A compound represented by formula (2) wherein X represents a hydrogen atom, a fluorine atom, a chlorine atom or a bromine atom, and Y represents a hydrogen atom, a fluorine atom, a chlorine atom or a bromine atom, is reacted with a brominating agent and an alkanol having 1 to 6 carbon atoms in the presence of a base to obtain a compound represented by formula (3) wherein R represents a C1 to C6 alkyl group, and X and Y represent the same meaning as described above, and then the compound represented by the formula (3) is reacted with hydrazine, whereby a compound represented by formula (1) wherein X and Y represent the same meaning as described above, which is useful as a production intermediate of a fungicide, can be obtained.
申请公布号 EP2980079(A4) 申请公布日期 2016.08.31
申请号 EP20140776160 申请日期 2014.03.17
申请人 SUMITOMO CHEMICAL COMPANY LIMITED 发明人 MANABE, AKIO
分类号 C07D237/14;C07D307/60 主分类号 C07D237/14
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