A new method for the synthesis of 1,4-dihydrobenzopyranopyrazoles using bromovinyl hydrazones has been described involving a [3+2] intramolecular cycloaddition
The formation of fused pyrazoles via intramolecular 1,3-dipolar cycloadditions of diazo intermediate...
N-Alkylation of 4,5-dihydroimidazoles with alkene-containing bromomethyl ketones and treatment of th...
A novel efficient tandem reaction of hydrazones and α-bromo ketones is reported for the preparation ...
A new method for the synthesis of 1,4-dihydrobenzopyranopyrazoles using bromovinyl hydrazones has be...
Electrophilic cyclizations of alpha,beta-alkynic hydrazones by molecular iodine were investigated fo...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
A variety of 1,3- and 1,5-donor-acceptor substituted pyrazole derivatives have been synthesized by t...
Pyrrolidino[3,4-c]pyrazoline and pyrazole derivatives were synthesized via reactions of a substitute...
Starting from the appropriate 1-substituted pyrrol-2-yl-(1) or indol-2-ylcarboxylic acid (6), the hy...
The acetyl acetone 3 reacts smoothly with the nitrile imines 2 generated in situ by the catalytic de...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
Semicarbazone derivatives were obtained by Michael-type reaction between 1,3,5-tris(N,N-dialkylamino...
1450-1453The acetyl acetone 3 reacts smoothly with the nitrile imines 2 generated in situ by the ca...
A synthesis of tetrasubstituted pyrazoles containing two, three or four pyridinyl substituents is de...
Pyrazoles have been studied for over a century as an important class of heterocyclic compounds and c...
The formation of fused pyrazoles via intramolecular 1,3-dipolar cycloadditions of diazo intermediate...
N-Alkylation of 4,5-dihydroimidazoles with alkene-containing bromomethyl ketones and treatment of th...
A novel efficient tandem reaction of hydrazones and α-bromo ketones is reported for the preparation ...
A new method for the synthesis of 1,4-dihydrobenzopyranopyrazoles using bromovinyl hydrazones has be...
Electrophilic cyclizations of alpha,beta-alkynic hydrazones by molecular iodine were investigated fo...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
A variety of 1,3- and 1,5-donor-acceptor substituted pyrazole derivatives have been synthesized by t...
Pyrrolidino[3,4-c]pyrazoline and pyrazole derivatives were synthesized via reactions of a substitute...
Starting from the appropriate 1-substituted pyrrol-2-yl-(1) or indol-2-ylcarboxylic acid (6), the hy...
The acetyl acetone 3 reacts smoothly with the nitrile imines 2 generated in situ by the catalytic de...
We report some novel pyrazole derivatives taking 4-phenylcarbonyl-5-phenyl-2,3-dihydro-2,3-furandion...
Semicarbazone derivatives were obtained by Michael-type reaction between 1,3,5-tris(N,N-dialkylamino...
1450-1453The acetyl acetone 3 reacts smoothly with the nitrile imines 2 generated in situ by the ca...
A synthesis of tetrasubstituted pyrazoles containing two, three or four pyridinyl substituents is de...
Pyrazoles have been studied for over a century as an important class of heterocyclic compounds and c...
The formation of fused pyrazoles via intramolecular 1,3-dipolar cycloadditions of diazo intermediate...
N-Alkylation of 4,5-dihydroimidazoles with alkene-containing bromomethyl ketones and treatment of th...
A novel efficient tandem reaction of hydrazones and α-bromo ketones is reported for the preparation ...
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