Hydrochloric Acid → HCID 67342117, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2.00 g (9.87 mmol) of 6-chloro-5-nitro-nicotinic acid and 2.03 g (11.8 mmol) of piperazin-1-yl-acetic acid ethyl ester in N,N-dimethylformamide (10 mL) are heated to 130° C. in a microwave reactor for 1 hour. The resulting dark mixture is poured into water which forms a precipitate. The pH of the mixture is adjusted to approximately pH 2 by adding concentrated hydrochloric acid. The precipitated solid is collected by filtration, washed with water, and dried under reduced pressure to give 2.70 g (81.1%) of 4-ethoxycarbonylmethyl-3′-nitro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-carboxylic acid as a yellow solid.

Provenance & Evidence