反应详情

8.0 grams 3,3-dibenzoyl-propionic acid-ethyl ester, 5.5 grams o-chlorophenylhydrazine hydrochloride, 2.5 grams sodium acetate and 4.0 grams glacial acetic acid were reacted and the reaction product recovered by a procedure analogous to the method set out in Example 21. 3.7 grams 3,5-diphenyl-1-(o-chlorophenyl)-pyrazol-4-acetic acid, melting at 191°-193° C., were obtained, representing a yield of 37%.

1. customthe reaction product recovered by a procedure analogous to the method