Process

Details Process Process

C - Chemistry, Metallurgy

07

D

260/278.1, 260/3

C07D 207/26 (2006.01) C07D 207/27 (2006.01) C07D 211/76 (2006.01)

Patent

CA 1132569

ABSTRACT OF THE DISCLOSURE AN improved process for the preparation of acyl hydrazides of the formula Image I wherein A and B individually are a group of the formula Image wherein R1 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, x is 0 or 1 and R2 and R3 are idnvidually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and n and m are individually 0, 1, 2 or 3 by reacting a compound of the formula Image II with a hydrazide of the formula Image III, the improvement comprising effecting the reaction in the presence of at least one catalyst of the formula R'-OMe where- in R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and Me is an alkali metal.

367900

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