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Inversion of configuration in the migrating group of a thermal 1,3-sigmatropic rearrangement

✍ Scribed by Berson, Jerome A.; Nelson, George L.

Book ID
126396131
Publisher
American Chemical Society
Year
1967
Tongue
English
Weight
275 KB
Volume
89
Category
Article
ISSN
0002-7863

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Migration tendencies of functional group
Migration tendencies of functional groups toward sigmatropic rearrangement in 3,3-disubstituted 3H-pyrazoles
✍ Peter Sciess; Henri Stalder πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science 🌐 French βš– 257 KB

Disubstituted 3H-pyrazoles la -e aromatise through an intramolecular sigmatropic 1,5-(1,2-)shift of one ofthe quaternary groups. From a kinetic study of the uncatalysed and of the acid catalysed isomerisation reaction migration tendencies of functional groups in sigmatropic rearrangement toward neut