Ethanol → HCID 23033856, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of ethyl ester of 2-bromobenzothiazole-7-carboxylic acid (572 mg, 2.00 mmol), piperidine (5 ml) and ethanol (1 ml) was stirred at 70-75° C. for 2.5 hrs. Diethyl ether (15 ml) was added to the mixture at room temperature and the precipitates were filtered off and washed with diethyl ether. The filtrate and washings were combined and the solvent was distilled off under reduced pressure. The residue was purified by column chromatography on silica gel (chloroform) to give ethyl ester of 2-piperidinobenzothiazole-7-carboxylic acid (526 mg, 90%) as pale orange crystals.

Provenance & Evidence