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Synthesis of bridgedhead azolo[3,2-a]pyrimidines and imidazo[2,1-b]thiazines through ring transformation of 2H-pyran-2-ones

✍ Scribed by Vishnu Ji Ram; Pratibha Srivastava; Atul Goel

Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 161 KB
Volume: 59
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(03)01101-3

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✦ Synopsis

Suitably functionalized 3-carbomethoxy/cyano-2H-pyran-2-ones are excellent synthons for the synthesis of arenes and heteroarenes of therapeutic importance. The compounds 6-aryl-3-cyano-4-methylsulfanyl-2H-pyran-2-ones have been transformed into bridgedhead azolopyrimidines and imidazothiazines through thermal and base-induced ring transformation reactions with aminoazoles and imidazolidin-2-thiones, respectively.

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