STUDIES OF PYRAZOLES. XLVI. SYNTHESIS OF PYRAZOLO PYRIDONES

Abstract

Cyclizations of acetoacetamidopyrazoles and of appropriate aminopyrazole crotonates to pyrazolopyridines with a hydroxy group in the pyridine ring are effected. In the case of an amino group at position 5 in the pyrazole ring cyclization takes place with acetylacetone. It is shown that the structure of pyrazolopyridone put forward by Bülow is incorrect.

Authors: S. V. Tabak, I. I. Grandberg, A. N. Kost.

English Translation in Chemistry of Heterocyclic Compounds, 1965, 1 (1), pp 79-82

http://link.springer.com/article/10.1007/BF01168928