A new synthesis of 5H-indenopyridines (IV) starting from 4-cyanobutyrophenones (I) or their cyclization products, the 6-phenyl-3,4-dihydropyridin-2-ones (II), is reported.The condensation of I or II in polyphosphoric acid with aromatic or heteroaro
Kunstmann, Rudolf,Lerch, Ulrich,Wagner, Konrad
p. 1437 - 1444
(2007/10/02)
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