53967-41-2Relevant academic research and scientific papers
A facile approach to N-heterocycles. The reactions of ylide phosphoranes with hydrazones
Ganoub, Neven A.
, p. 143 - 148 (2001)
The reactions of isatin-β-phenylhydrazone 1 and benzil monophenylhydrazone 2 with some ester-3a,b and keto ylides 3c were studied in details. under different experimental conditions with the aim of evaluating the synthetic potential of this approach for the synthesis of N-heterocyclic systems. Structures of the new compounds were established on the basis of elemental and spectroscopic analyses.
1,3-Dipolar Cycloaddition of Four Hydrazonoyl Chlorides to β-Diketones and α,β-Unsaturated Ketones
Albar, Hassan A.
, p. 872 - 889 (2007/10/03)
The 1,3-dipolar cycloaddition of four hydrazonoyl chloride derivatives with the sodium salt of unsymmetrical β-diketones (benzoylacetone) offers a versatile method for the regioselective synthesis of 2H-pyrazoles in a similar fashion to the cycloaddition of the nitrilimides with α,β-unsaturated ketones and esters. The structures of the prepared isomeric pyrazole and pyrazoline derivatives were established by spectroscopic and chemical methods.
