Fremgangsmåde til fremstilling af 1-phenylpyrazolin-3-carboxylsyrederivater
There is described a process for the preparation of 1-phenylpyrazoline-3-carboxylic acid derivatives of the formula III by means of base-catalyzed reaction of hydrazones of the formula I with olefins of the formula II where Ph, R1, R2, R3, X and Y have the following meanings: Ph is optionally substi...
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