NHC-catalysed [3 + 2]-asymmetric annulation between pyrazolin-4,5-diones and enals: synthesis of novel spirocyclic pyrazolone γ-butyrolactones and computational study of mechanism and stereoselectivity
Authors: M. Gil-Ordóñez, A. Maestro, P. Ortega, P. G. Jambrina, J. M. Andrés
Ref. Org. Chem. Front. 9, 420-427 (2022) https://doi.org/10.1039/D1QO01462E
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