Hydrochloric Acid → HCID 13742395, compound

Participants

Reaction Steps

A mixture of 5.2 parts of N,N-dimethyl-N'-(4-chloro-3-cyano-5-nitrothien-2-yl)-formamidine, 50 parts of ethanol and 5 parts of concentrated hydrochloric acid is heated at the boil for 3 hours and then poured onto ice water. The precipitate is filtered off under suction, washed with water and dried. 3.2 parts (79% of theory) of 2-amino-4-chloro-3-cyano-5-nitrothiophene are obtained. Decomposition temperature: 227° C. (from o-dichlorobenzene).

Provenance & Evidence