Triethylamine → HCID 25116540, compound

Participants

Reaction Steps

A mixture of 0.5 g of 5-(3,4-di methoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B1), 0.24 g of (2-oxo-pyrrolidin-1-yl)acetyl chloride and 0.5 ml of triethyl amine in 50 ml of dichloromethane is stirred for 30 min and washed subsequently with aqueous sodium carbonate. After drying over magnesium sulphate the solvent is evaporated and the residue purified by column chromatography [silica, ethyl acetate/methanol:6:1 (Vol/Vol)]. Crystallized from diethyl ether.

Provenance & Evidence