4,4,4-Trifluoro-2-butynoic acid methyl ester

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into 30 ml of methanol were dissolved 2.17 g (13.2 mmol) of methyl-p-aminophenylacetate, and, under stirring and cooling with ice, a solution of 2.00 g (13.2 mmol) of methyl 3- trifluoromethylpropiolate in 10 ml of methanol was added dropwise. After 30 minutes, solvent was distilled off to obtain methyl 3-(4-methoxycarbonylmethylphenylamino)-3-trifluoromethylacrylate (4.17 g) as a yellow oily substance. cooling with ice solvent was distilled off