p-Toluenesulfonic acid → HCID 23334290, compound

Participants

Reaction Steps

To a solution of 35.3 g α-phenyl-β-amino-β-ethoxyacrylic acid ethyl ester and 1 g p-toluenesulphonic acid in 150 ml ethanol were added dropwise, under nitrogen, 31.5 g 3-trifluoromethyl-4-methylbenzylhydrazine. After stirring overnight, the solvent was distilled off in a vacuum; the residue was recrystallized from dimethyl formamide.

Provenance & Evidence