Synthesis of 3-(1,3-Diaryl-4,6-dioxo-2-thioxoperhydro- pyrimidin-5-yl)-2H-[1,4]benzothiazines†

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V. K. Ahluwalia, Pooja Sharma and Renu Aggarwal


Abstract

Condensation of 1,3-diaryl-5-chloroacetyl-4,6-dioxo-2-thioxoperhydropyrimidines (2a–f) with 2-aminobenzenethiol in ethanol in the presence of pyridine gives the title compounds (3a–f), under both microwave irradiation and classical conditions; reactions are ca. 180 times faster using the microwave rather than the classical method.


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