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Priority claimed from HU80635Aexternal-prioritypatent/HU182794B/en
Priority claimed from CS703780Aexternal-prioritypatent/CS274807B2/en
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Publication of CS274808B2publicationCriticalpatent/CS274808B2/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
The method of preparation of derivatives of 5(6)-thiocyanatobenzimidazole of general formula I, where R<1> means alkoxycarbonyl amino group with 1 or 2 carbon atoms in alkoxyl part, consists in the fact that the compound of general formula II, in which R<1> is of the above mentioned meaning, is let to react with gas chlorine and rhodanide of general formula III, in which R<3> is the atom of alkaline metal, metal of alkaline earths or amino group.The compounds prepared in the above-described manner are intermediate products in production of benzimidazole derivatives, known as anthelmintics.<IMAGE>
CS482285A1980-03-191985-06-28Method of 5 (6)-thiocyanatobenzimidazole's derivatives production
CS274808B2
(en)