PROCESS FOR THE PREPARATION OF BIS-DIHALOALKYL PYRAZOLES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:US20150376135A1
公开(公告)日:2015-12-31
The present invention relates to a process for the preparation of bisdihaloalkyl pyrazoles of formula (V) starting from diketones and acylhalides reacted with a Lewis acid, and a subsequent reaction with a substituted hydrazine.