Three-component condensations with 5-amino-4-phenylpyrazole
作者:D. V. Kryl’skii、Kh. S. Shikhaliev、A. S. Chuvashlev
DOI:10.1134/s107042801003019x
日期:2010.3
3-methyl(or methoxymethyl)-4-phenyl-1H-pyrazol-5-amine with triethyl orthoformate and carbonyl compounds or nitriles containing an activated methylene group (cyclohexane-1,3-diones, acetoacetanilides, benzoylacetone, ethyl cyanoacetate, malononitrile, 1H-benzimidazol-2-ylacetonitrile) gave substituted pyrazolopyrimidines and pyrazoloquinazolines.