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2004
Aldehydes
Q 0320
44- 089
An Innovative Approach to the Synthesis of Substituted Benzaldehydes Through
Carbanion Induced Ring Transformation of Suitably Functionalized 2H-Pyran-2-ones. — Substituted benzaldehydes, required as important building blocks, are synthesized through a novel approach. It involves the addition of a carbanion derived from
methylglyoxaldimethylacetal (II) to pyridones and subsequent cyclization with loss of
carbon dioxide. — (PRATAP, R.; SIL, D.; RAM*, V. J.; Tetrahedron Lett. 45 (2004)
29, 5743-5745; Div. Med. Chem., Cent. Drug Res. Inst., Lucknow 226 001, India;
Eng.) — Mais
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