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Synthesis and Antimycobacterial Evaluation of Novel Pyrazole‐Isoxazolines and Pyrazole‐Isoxazoles
ChemBioChemAbstractThis study reports the synthesis of a new series of pyrazole‐isoxazolines, at very good yields, from the cyclocondensation reaction of pyrazole‐enaminones with hydroxylamine hydrochloride. Dehydration of the pyrazole‐isoxazolines furnished another new series of the respective pyrazole‐isoxazoles, at excellent yields. Both series of the obtained
Paulo A. Moraes +10 more
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Fluorinated Pyrazoles: From Synthesis to Applications
Chemical Reviews, 2021Pavel K Mykhailiuk
exaly
Enantioselective Addition of Pyrazoles to Dienes**
Angewandte Chemie - International Edition, 2021Alexander Y Jiu +2 more
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Thermal rearrangements of 3H-pyrazoles, 4H-pyrazoles, and cyclopentadienes
19923H-Pyrazoles generally undergo thermal rearrangement by concerted [1,5]-sigmatropic migrations. It has been discovered that 3H-pyrazoles 111a-e undergo thermal rearrangement by an alterative mechanism. A stepwise, ion-pair, mechanism operates in these rearrangements, in benzene/toluene, chloroform, and methanol solvents.
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Pyrazoles VII: nitration of 1,4-disubstituted pyrazoles
Tetrahedron Letters, 1970Clarisse L. Habraken +3 more
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Skeletal Editing of Pyrimidines to Pyrazoles by Formal Carbon Deletion
Journal of the American Chemical Society, 2022G. Logan Bartholomew, Richmond Sarpong
exaly