p-Toluenesulfonic acid → HCID 20367199, compound

Participants

Reaction Steps

14.2 g of 3-ethylbenzylhydrazine were added dropwise to a solution of 15.1 g of β-amino-β-ethoxyacrylic acid ethyl ester and a pinch of p-toluenesulphonic acid in 80 ml of ethanol, in the course of which the temperature rose from 22° to 30°. After stirring overnight, the solvent was distilled off in vacuo and the solid residue was recrystallised from ethanol. The product was the compound identified above. Melting point: 73°, 5 g (24%).

Provenance & Evidence