(Chemical Equation Presented) No metal required: A protocol for the enantioselective organocatalytic chlorination of cyclic and acyclic β-keto esters and cyclic β-diketones has been developed which is also effective for the asymmetric bromination of β-keto esters. The methodology employs an inexpensive organocatalyst (e.g. benzoylquinidine) and polyhalogenated quinolinones as the source of the halogen (see scheme). © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
Organocatalytic asymmetric α-halogenation of 1,3-dicarbonyl compounds
Carlone, Armando;
2005-01-01
Abstract
(Chemical Equation Presented) No metal required: A protocol for the enantioselective organocatalytic chlorination of cyclic and acyclic β-keto esters and cyclic β-diketones has been developed which is also effective for the asymmetric bromination of β-keto esters. The methodology employs an inexpensive organocatalyst (e.g. benzoylquinidine) and polyhalogenated quinolinones as the source of the halogen (see scheme). © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.File in questo prodotto:
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