[EN] PROCESS FOR PREPARING 1-PHENYLPYRAZOLES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE 1-PHÉNYLPYRAZOLES
申请人:BASF SE
公开号:WO2011026937A1
公开(公告)日:2011-03-10
The present invention to a process for preparing 1-phenylpyrazoles of the formula I in which each R1 is independently selected from chlorine, fluorine, alkyl, haloalkyl, alkoxy and haloalkoxy;n is 1, 2 or 3;each R2 is independently selected from cyano, nitro, halogen, alkyl, haloalkyl,alkoxy, haloalkoxy,alkylthio and alkoxycarbonyl; mis 0, 1 or 2;A is alkyl, aryl or aryl-C1-C4-alkyl, where A optionally bears 1, 2, 3 or 4 substituents comprising reacting a phenyl halide of the formula (II) with apyrazole derivative of the formula (III) in which X is chlorine, iodine or bromine; and R1, n, R2, m and A are each as defined above, in the presence of a base and a catalytic system comprising a ligand and a metal compound selected from palladium compounds, iron compounds and copper compounds.
本发明涉及一种制备式I的1-苯基吡唑的方法,其中每个R1独立地选自氯、氟、烷基、卤代烷基、烷氧基和卤代烷氧基;n为1、2或3;每个R2独立地选自氰基、硝基、卤素、烷基、卤代烷基、烷氧基、卤代烷氧基、烷硫基和烷氧羰基;m为0、1或2;A为烷基、芳基或芳基-C1-C4-烷基,其中A可选地带有1、2、3或4个取代基;通过在碱和包括来自钯化合物、铁化合物和铜化合物的金属化合物的配体和催化系统的存在下,将式(II)的苯基卤化物与式(III)的吡唑衍生物反应,其中X为氯、碘或溴;R1、n、R2、m和A如上所定义。