Acetic Acid → Hydrazinecarboxylic acid, (2-methyl-1-phenylpropylidene)-, methyl ester

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Reaction Steps

To a solution of 44.46 g (0.3 moles) of isobutyrophenone in 200 ml of methanol 3 ml of acetic acid and 27 g of methyl carbazate are added. The reaction mixture is boiled in a flask equipped with a reflux condenser, then clarified and evaporated in vacuo to half of its original volume. The residue is cooled and the separated tallow-like product is filtered off. Yield: 64.2 g (97.3%) M.p.: 78°-80° C. The product can be recrystallized from petrol.

Provenance & Evidence