Suitably substituted 2\u27-hydroxy-5\u27-chlorochalcones with hydrazine hydrochloride in refluxing DMF afforded isomeric Δ2-pyrazolines, which were characterized on the basis of chemical and spectral data
879-884The title compounds 4a-h and 5a-h, have been prepared starting from chalcones 3a-h having 5-...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
Reaction of 1,1,1-trichloro-4-methoxy-3-penten-2-one (1) with hydrazines (2a-h) (NH2NHR, R = H, Me, ...
2700-2701Reactions of chalcones 1a-u with phcnylhydrazine and hydrazine hydrate give pyrazolines 2a...
1-(2-hydroxy-3,4-benzophenyl-5-methoxy)-3aryl-prop-2-ene-1-one & semicarbazide / thiosemic...
532-534Reactions of 2′-hydroxy chalcone dibromides 2a-l with phenyl hydrazine and hydrazine hydrate ...
International audienceReaction of chalcone derivatives 1-4 with hydrazine hydrate in presence of for...
To date there are but two methods for distinguishing between these compounds. The first involves the...
<p>A simple, facile, and high yielding stereoselective approach for the integration of α-methylene-p...
It was thought interesting to synthesize pyrazole derivatives. The titled compounds were prepared by...
A new synthesis for 3,5,6-trisubstituted pyrazin-2(1H)-ones from 3,4-disubstituted 4-(phenyloxalylam...
A versatile method for the reduction of 2-pyrazolines was developed in this research. In every reduc...
A new series of 1H-3-(4’-substituted phenyl)-5-(6’’-methoxy napthaline)-2-pyrazolines (4a-e) and 1H-...
Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt Chemistry Department, Facul...
Pyrazoline is a five-ring heterocyclic compound having 3 carbon atoms and 2 nitrogen atoms known to ...
879-884The title compounds 4a-h and 5a-h, have been prepared starting from chalcones 3a-h having 5-...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
Reaction of 1,1,1-trichloro-4-methoxy-3-penten-2-one (1) with hydrazines (2a-h) (NH2NHR, R = H, Me, ...
2700-2701Reactions of chalcones 1a-u with phcnylhydrazine and hydrazine hydrate give pyrazolines 2a...
1-(2-hydroxy-3,4-benzophenyl-5-methoxy)-3aryl-prop-2-ene-1-one & semicarbazide / thiosemic...
532-534Reactions of 2′-hydroxy chalcone dibromides 2a-l with phenyl hydrazine and hydrazine hydrate ...
International audienceReaction of chalcone derivatives 1-4 with hydrazine hydrate in presence of for...
To date there are but two methods for distinguishing between these compounds. The first involves the...
<p>A simple, facile, and high yielding stereoselective approach for the integration of α-methylene-p...
It was thought interesting to synthesize pyrazole derivatives. The titled compounds were prepared by...
A new synthesis for 3,5,6-trisubstituted pyrazin-2(1H)-ones from 3,4-disubstituted 4-(phenyloxalylam...
A versatile method for the reduction of 2-pyrazolines was developed in this research. In every reduc...
A new series of 1H-3-(4’-substituted phenyl)-5-(6’’-methoxy napthaline)-2-pyrazolines (4a-e) and 1H-...
Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt Chemistry Department, Facul...
Pyrazoline is a five-ring heterocyclic compound having 3 carbon atoms and 2 nitrogen atoms known to ...
879-884The title compounds 4a-h and 5a-h, have been prepared starting from chalcones 3a-h having 5-...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
Reaction of 1,1,1-trichloro-4-methoxy-3-penten-2-one (1) with hydrazines (2a-h) (NH2NHR, R = H, Me, ...
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