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Synthesis and reactions of 6-methylsulfanyl-2,4-dithioxo-1,2,3,4-tetrahydropyrimidin-5-carbonitrile

✍ Scribed by Detlef Briel; Tanja Franz; Bodo Dobner


Publisher
Journal of Heterocyclic Chemistry
Year
2002
Tongue
English
Weight
67 KB
Volume
39
Category
Article
ISSN
0022-152X

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✦ Synopsis


Abstract

The synthesis of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carbonitrile 4 is described. Compound 4 was reacted with various alkylants. The reaction with chloroacetic acid derivatives results in the formation of thieno[2,3‐d]pyrimidines 8. When methyl iodide was used 2,4,6‐tris(methylsul‐fanyl)pyrimidine‐5‐carbonitrile 5 was obtained. The substitution of the methylsulfanyl groups in compound 5 by several N‐nuclophiles leads to amino substituted pyrimidines.


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Synthesis and reactions of 2-amino-6-(3-
✍ R. A. Ahmed; M. M. Kandeel; M. S. Abbady; M. S. K. Youssef 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 81 KB 👁 1 views

## Abstract 2‐Amino‐6‐(3‐methyl‐5‐oxo‐1‐phenyl‐2‐pyrazolin‐4‐yl)‐4‐phenylpyridine‐3‐carbonitrile (1) obtained by the reaction of 4‐(1‐iminoethyl)‐3‐methyl‐1‐phenyl‐2‐pyrazolin‐5‐one with benzylidenemalononitrile, was reacted with triethyl orthoformate followed by hydrazine hydrate, acetic anhydride