The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.
VERFAHREN ZUM HERSTELLEN VON ARYL-SUBSTITUIERTEN PYRAZOLEN
申请人:Bayer CropScience AG
公开号:EP2456760B1
公开(公告)日:2014-05-07
US8299260B2
申请人:——
公开号:US8299260B2
公开(公告)日:2012-10-30
US8399679B2
申请人:——
公开号:US8399679B2
公开(公告)日:2013-03-19
Process for preparing aryl-substituted pyrazoles
申请人:Pazenok Sergii
公开号:US20110028729A1
公开(公告)日:2011-02-03
The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.