Synthese von Thieno2,3—d-1,2,3-triazin- und 1Benzothieno 2,3—d-1,2,3-triazin-Derivaten

摘要

The title substances, derivatives of two new heterocyclic ring systems, were synthesized by intramolecular cyclisations of diazonium compounds, prepared from derivatives of 2-amino-thiophene-3-carboxamide and of 2-amino-benzobthiophene-3-carboxamide. By-reactions and substitution reactions are mentioned.