Nitric Acid → HCID 13318567, compound

Participants

Reaction Steps

A suspension of 2.6 g 3-(4-chlorophenylamino)-pyrazine-2-carboxylic acid methyl ester in 100 ml nitromethane is stirred and treated dropwise at 0° C. with 24 ml nitric acid (99%). Stirring is continued at 0° C. for further 45 minutes. The solution is poured on ice and extracted with methylene chloride. The organic phase is washed with saturated sodium bicarbonate solution, dried over sodium sulphate and evaporated to give the heading compound, m.p. 191°-192°.

Provenance & Evidence