ASYMMETRIC INTERMOLECULAR N-H INSERTION REACTION OF PHENYLDIAZOACETATES WITH ANILINES CATALYZED BY ACHIRAL DIRHODIUM(II) CARBOXYLATES AND CINCHONA ALKALOIDS

[摘要]：Asymmetric N-H insertion of phenyldiazoacetates with anilines catalyzed cooperatively by achiral dirhodium(II) carboxylates and cinchona alkaloids is described. A new catalytic system of dirhodium(II) tetrakis(triphenylacetate), Rh-2(TPA)(4), and dihydrocinchonine provides phenylglycine derivatives in up to 71% ee.

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