Process for the produciton of guanylthiourea

Details Process for the produciton of guanylthiourea Process for the produciton of guanylthiourea

C - Chemistry, Metallurgy

07

C

C07C 335/28 (2006.01)

Patent

CA 2052919

Abstract Process for the production of guanylthiourea The present invention provides a process for the production of guanylthiourea by the reaction of dicyandiamide with hydrogen sulphide in M-alkyl- pyrrolidone as solvent in the presence of cata- lytically-acting additives, wherein, as catalytic- ally-acting additive there is used an amine, ammonia and/or elementary sulphur with the formation of an addition compound of guanylthiourea and M-alkyl- pyrrolidone which is decomposed by treatment with an organic solvent followed by recovery of guanyl- thiourea as residue.

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