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Spirobicyclic and Tetracyclic Pyrazolidinones: Syntheses and Properties

2019-08-09

Description : The stereoselective syntheses of spirobicyclic and tetracyclic pyrazolidinones are reported based on a (3+2) annu- lation between hydrazones and α-oxoketenes. Some of these conformationally constrained molecules were resolved as enantiopure materials by HPLC techniques and evaluated as amino- catalysts for iminium activation in a model Diels–Alder cyclo- addition.
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https://medihal.archives-ouvertes.fr/hal-02331873
Contributeur : Gaelle Chouraqui <>
Soumis le : jeudi 24 octobre 2019 - 15:15:49
Dernière modification le : lundi 4 novembre 2019 - 09:21:59