Spontaneous transpositions from pyrazolenines into pyrazoles. Competitive [1,5] migrations of an acyl or carbalkoxy group to the carbon and nitrogen.
Author:
Publisher
Elsevier BV
Subject
Organic Chemistry,Drug Discovery,Biochemistry
Reference22 articles.
1. Migrations sigmatropiques [1,5] spontanees de groupes cetone, ester et nitrile en serie pyrazole. synthese d'un tricarbalcoxy-1,2,3 cyclopropene.
2. 1,3-Dipolare Addition cyclischer Diazoketone an Alkine und Cyclopropene. Heterocyclensynthese durch [1,5]-Acylwanderung
3. Dipolar addition and acyl migration in reactions of benzyne and acetylenes with 5-membered ring α-diazo ketones
4. Rearrangement, extrusion, and polymerization reactions upon addition of acetylenes to 3-diazooxindole and six-membered ring α-diazo ketones
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3. Synthesis of Spirobicyclic Pyrazoles by Intramolecular Dipolar Cycloadditions/[1s, 5s] Sigmatropic Rearrangements;Organic Letters;2019-09-05
4. Rearrangements of 3H-Pyrazoles—Adducts of Dimethyl Acetylenedicarboxylate with Diphenyldiazomethane and 9-Diazofluorene;Russian Journal of Organic Chemistry;2018-06
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