Acetic Acid → HCID 86742693, compound

Participants

Reaction Steps

A solution of piperidine (0.11 g) and acetic acid (0.078 g) in isopropanol (1 ml) was added to a solution of 3-(2-formylphenyl)propenoic acid 1,1-dimethylethyl ester (5.2 g) and methyl acetoacetate (2.55 g) in isopropanol (15 ml). The mixture was stirred at 60° C. for 1h, then the solvent was evaporated and the residue taken up with ether (100 ml). The solution was washed with 1N HCl, water, with saturated bicarbonate solution, then water again and dried over Na2SO4. Evaporation of the solvent gave an oil which was purified by column chromatography (gradient Petrol/Ether, 7:3-1:1) to give the title compound as a pale oil (4.2 g; mixture E/Z isomers).

Provenance & Evidence