2-Aminothiophenol → HCID 19864589, compound

Participants

Reaction Steps

Sodium (7.7 mmol) is added to a flask containing 70 ml of ethanol. As soon as the sodium has dissolved, 7 mmol of 5-carboxy-2-cyanopyridine and 8.4 mmol of 2-amino-thiophenol are added and the solution is refluxed for 24 h. The solid formed is filtered off, redissolved in ethanol and water, the solution is made acidic (pH=3) with 2N HCl and evaporated. The residue is dissolved in 100 ml of hot ethyl acetate, the salts are filtered off and the filtrate on cooling gives crystals of the title compound, m.p. >300°.

Provenance & Evidence