Add to ORKGAn unprecedented solvent-controlled, regio-switchable Knorr-type reaction for the synthesis of pyrazoles has been realized in the cyclocondensation of beta-aminoenones with hydrazides. Single regioisomer of 3- or 5-arylaminopyrazole can be obtained simply by changing the reaction solvent. Using hydrazine hydrate, only 3-arylaminopyrazoles were produced
An alternative highly regioselective synthetic method for the preparation of 3,5-disubstituted 4-for...
Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-aryl-3...
The reaction of enolisable ketones with 1-alkyl-1-cyanohydrazines leads to the corresponding cyanohy...
An efficient highly regioselective protocol for the synthesis of isomeric 1,3-diaryl (or 1-aryl-3-al...
Regioselective Synthesis of Multisubstituted Pyrazoles via Cyclocondensation of β-Thioalkyl-α,β-Unsa...
The title pyrazoles were synthesized through cyclocondensation of hydroxyiminoimine derivatives 1a-j...
Multisubstituted pyrazoles were efficiently synthesized by cyclocondensation of beta-thioalkyl-alpha...
Conditions for successful syntheses of poly- substituted pyrazole-3-carboxylates have been found. Th...
<div><p></p><p>1,3,4,5-Tetrasubstituted pyrazoles are rapidly and regioselectively synthesized in a ...
1,3,4,5-Tetrasubstituted pyrazoles are rapidly and regioselectively synthesized in a one-pot, three-...
A variety of 1,3- and 1,5-donor-acceptor substituted pyrazole derivatives have been synthesized by t...
Acylation of N-Boc-N-methylhydrazones followed by TFA treatment affords regioselective access to sub...
beta -Enamino keto ester (2a) reacts with hydroxylamine to give an isoxazole derivative (3). Compoun...
2338-2342The 3,5-diarylpyrazolines and pyrazoles have been easily synthesized in excellent yields b...
International audiencePyrazole derivatives bearing a cyclopropyl group at C3-position and an amino s...
An alternative highly regioselective synthetic method for the preparation of 3,5-disubstituted 4-for...
Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-aryl-3...
The reaction of enolisable ketones with 1-alkyl-1-cyanohydrazines leads to the corresponding cyanohy...
An efficient highly regioselective protocol for the synthesis of isomeric 1,3-diaryl (or 1-aryl-3-al...
Regioselective Synthesis of Multisubstituted Pyrazoles via Cyclocondensation of β-Thioalkyl-α,β-Unsa...
The title pyrazoles were synthesized through cyclocondensation of hydroxyiminoimine derivatives 1a-j...
Multisubstituted pyrazoles were efficiently synthesized by cyclocondensation of beta-thioalkyl-alpha...
Conditions for successful syntheses of poly- substituted pyrazole-3-carboxylates have been found. Th...
<div><p></p><p>1,3,4,5-Tetrasubstituted pyrazoles are rapidly and regioselectively synthesized in a ...
1,3,4,5-Tetrasubstituted pyrazoles are rapidly and regioselectively synthesized in a one-pot, three-...
A variety of 1,3- and 1,5-donor-acceptor substituted pyrazole derivatives have been synthesized by t...
Acylation of N-Boc-N-methylhydrazones followed by TFA treatment affords regioselective access to sub...
beta -Enamino keto ester (2a) reacts with hydroxylamine to give an isoxazole derivative (3). Compoun...
2338-2342The 3,5-diarylpyrazolines and pyrazoles have been easily synthesized in excellent yields b...
International audiencePyrazole derivatives bearing a cyclopropyl group at C3-position and an amino s...
An alternative highly regioselective synthetic method for the preparation of 3,5-disubstituted 4-for...
Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-aryl-3...
The reaction of enolisable ketones with 1-alkyl-1-cyanohydrazines leads to the corresponding cyanohy...