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Synthesen von basisch substituierten ([1]Benzo-)Thieno-[2,3—d]pyrimidin-Derivaten und von ([1]Benzo-)Thieno-[2,3-d]-1,2,4-triazolo[4,3-a]pyrimidin-Derivaten

Syntheses of [1]Benzo-)Thieno[2.3-d]pyrimidines and of ([1]Benzo-)Thieno[2.3-d]-1.2.4-triazolo[4.3—a]pyrimidines with basic substituents in position 2

  • Organische Chemie und Biochemie
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Abstract

Reaction of 2-methylthio-thieno[2.3-d]pyrimidin-4(3H)-ones with heterocyclic secondary amines, ethanolamine and hydrazine, resp., gave the corresponding derivatives with a basic substituent in position 2.

Cyclization of the hydrazino compounds with formic acid gave derivatives of thieno[2.3-d]-1.2.4-triazolo[4.3-a]pyrimidine and [1]benzothieno[2.3-d]-1.2.4-triazolo[4.3-a]pyrimidine, two new heterocyclic systems.

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Authors and Affiliations

  1. Institut für Organische Chemie der Technischen Hochschule Wien, Getreidemarkt 9, A-1060, Wien, Österreich

    F. Sauter & W. Deinhammer

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  1. F. Sauter
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  2. W. Deinhammer
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Sauter, F., Deinhammer, W. Synthesen von basisch substituierten ([1]Benzo-)Thieno-[2,3—d]pyrimidin-Derivaten und von ([1]Benzo-)Thieno-[2,3-d]-1,2,4-triazolo[4,3-a]pyrimidin-Derivaten. Monatshefte für Chemie 105, 558–562 (1974). https://doi.org/10.1007/BF00912608

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  • DOI: https://doi.org/10.1007/BF00912608

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