A protocol for the enantioselective organocatalytic chlorina- tion of cyclic and acyclic b -keto esters and cyclic b -diketones has been developed which is also effective forthe asymmetric bromination of b -keto esters.The metho- dology employs an inexpensive organo- catalyst (e.g.benzoylquinidine)and poly- halogenated quinolinones as the source of the halogen.
G. Bartoli, M. Bosco, A. Carlone, M. Locatelli, P. Melchiorre, L. Sambri (2005). Organocatalytic Asymmetric a-Halogenation of 1,3-Dicarbonyl Compounds. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 44, 6219-6222 [10.1002/anie.200502134].
Organocatalytic Asymmetric a-Halogenation of 1,3-Dicarbonyl Compounds
BARTOLI, GIUSEPPE;BOSCO, MARCELLA;CARLONE, ARMANDO;LOCATELLI, MANUELA;MELCHIORRE, PAOLO;SAMBRI, LETIZIA
2005
Abstract
A protocol for the enantioselective organocatalytic chlorina- tion of cyclic and acyclic b -keto esters and cyclic b -diketones has been developed which is also effective forthe asymmetric bromination of b -keto esters.The metho- dology employs an inexpensive organo- catalyst (e.g.benzoylquinidine)and poly- halogenated quinolinones as the source of the halogen.File in questo prodotto:
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