[EN] PROCESS FOR PRODUCING PYRIDAZINONE COMPOUND AND PRODUCTION INTERMEDIATES THEREOF [FR] PROCÉDÉ DE PRODUCTION D'UN COMPOSÉ PYRIDAZINONE ET PRODUCTION DE SES INTERMÉDIAIRES
PROCESS FOR PRODUCING PYRIDAZINONE COMPOUND AND PRODUCTION INTERMEDIATES THEREOF
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20150376138A1
公开(公告)日:2015-12-31
The present invention provides a process for producing a compound of the formula (1) wherein X represents a hydrogen atom, etc., and Y represents a hydrogen atom, etc., which comprises step 1 of reacting a compound of the formula (2) and a compound of the formula (3) in the presence of a Lewis acid wherein R represents a hydrogen atom, etc., to obtain an adduct, and step 2 of reacting the adduct obtained in the step 1 and hydrazine to obtain the compound of the formula (1).