Collect. Czech. Chem. Commun. 1981, 46, 1167-1172

Reaction of 1-pyridyl-1,3-butanediones and 1,3-dipyridyl-1,3-propanediones

Miloslav Ferles, Stanislav Kafka, Alexandra Šilhánková and Michaela Šputová

Department of Organic Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


Reduction of diketones I with zinc and formic acid gives monoketones II. Diketones Ia, IIIb, IIIc are converted with hydrazines to pyrazoles VIa, IVa, IVb, V. Methiodides VII are reduced with sodium borohydride to derivatives of 1-methyl-3-piperideine VIII-X.