Chemistry of Heterocyclic Compounds p. 359 - 363 (1995)
Update date:2022-07-30
Topics:
Korotkikh, N. I.
Raenko, G. F.
Shvaika, O. P.
It was found that bromination of 2-allylthiobenzimidazoles in organic solvents forms products of addition of bromine to the olefin bond - 2,3-dibromopropylthiobenzimidazoles, whch spontaneously or on heating cyclize into 3-bromobenzimidazo<2,1-b>-1,3-thiazines or cyclodehydrobromination products - 2H- or 4H-benzimidazo<2,1-b>-1,3-thiazines.
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