Carbonic acid-guanidine (1:1) → HCID 11095586, compound

Participants

Reaction Steps

An intimate mixture of 1 g of 3-aminopyridine-2- sulfonamide (Preparation 1) and 2.1 g of guanidine carbonate is progressively brought to the molten state (200° C.) and then heated for 24 hours at this temperature. After cooling, the residue is taken up in water. The possible insoluble material is filtered and the filtrate, treated with animal charcoal, is acidified to a pH of 7. The white precipitate is collected on a filter, washed with water and recrystallized from hot water.

Provenance & Evidence