Journal of heterocyclic chemistry

Trifluoromethyl substituted 4??pyrones via self??condensation of trifluoroacetoacetates

S Babu, MJ Pozzo

Index: Babu, Srinivasan; Pozzo, Mark J. Journal of Heterocyclic Chemistry, 1991 , vol. 28, # 3 p. 819 - 821

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Citation Number: 6

Abstract

Abstract When 3-(acetoxy)-4, 4, 4-trifluoro-2-butenoates 7 and 8 are heated at 100, in the presence of catalytic amounts of zinc chloride, they undergo self-condensation to yield 2, 6- bis (trifluoromethyl)-4-pyrones 1 and 2 respectively. Compounds 1 and 2 were further converted to the corresponding pyridine derivatives 3 and 4 via ammoniolysis.