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A facile annelation of pyridines with nitriles of α,β-acetylenic γ-hydroxyacids

✍ Scribed by Boris A Trofimov; Ludmila V Andriyankova; Sergei A Zhivet'ev; Anastasiya G Mal'kina; Vladimir K Voronov

Publisher: Elsevier Science
Year: 2002
Tongue: French
Weight: 89 KB
Volume: 43
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)02332-2

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✦ Synopsis

Pyridines are readily annelated with nitriles of a,b-acetylenic g-hydroxyacids under mild conditions (ambient temperature, no catalyst, no solvent) to give new condensed dihydropyridine systems, 4-cyanomethylidene-1,3-oxazolidine[3,2-a]-1,2-dihydropyridines in 75-83% yields.

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