Synthesis of some 3-alkenyl-4-oxo-1-phenyl-5,6-dihydro-1h,4h-pyrano[2,3-c]pyrazole derivatives

Article abstract of DOI:10.1002/jhet.5570220121

The title compounds were prepared from 3-alkenyl-1-phenyl-2-pyrazolin-5-one derivatives and α,β-unsaturated acyl chlorides as potential cardiotonic agents.