N-acyl-1,4-dihydropyridines by acid cata
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Joseph S. Foos; William Killian; S.Q.A. Rizvi; Michael Unger; Gideon Fraenkel
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Article
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1978
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Elsevier Science
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French
⚖ 141 KB
Dihydropyridines have been prepared via the Hantzsch synthesis', by reduction of pyridines2 and condensation reactions usingglutara1dehydes.s These procedures are often plagued by low yields and unwanted side-products. We have used N-acyl-1,4\_dihydropyridines 1 as precursors of dihydropyridine ani