Hydrochloric Acid → HCID 178527952, compound

Participants

Reaction Steps

Potassium hydroxide (4.78 g, 85.3 mmol) was solved in methanol (125 ml). 1H-pyrrole-2-carbohydrazide (Compound C) (9.7 g, 77.5 mmol) was added and the mixture was stirred for 30 minutes. Carbon disulfide (14.7 g, 193.8 mmol) was added to the mixture followed by stirring at 65° C. for 15 h. Another equivalent of carbon disulfide (5.90 g, 77.5 mmol) was added followed by stirring at 65° C. for 4 days. Aqueous hydrochloric acid (1 M) was added in excess quantity, the mixture was stirred and filtered and washed with aqueous hydrochloric acid. Yield 10 g (77%).

Provenance & Evidence