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Using the diphosphine‐cobalt‐zinc catalytic system, an efficient asymmetric hydrogenation of internal simple enamides has been realized. In particular, the Ph‐BPE ligand can achieve convergent asymmetric hydrogenation of E/Z‐substrates. High yields and excellent enantioselectivities were obtained for both acyclic and cyclic enamides bearing α‐alkyl‐β‐aryl, α‐aryl‐β‐aryl, and α‐aryl‐β‐alkyl substituents...
Using the diphosphine‐cobalt‐zinc catalytic system, an efficient asymmetric hydrogenation of internal simple enamides has been realized. In particular, the Ph‐BPE ligand can achieve convergent asymmetric hydrogenation of E/Z‐substrates. High yields and excellent enantioselectivities were obtained for both acyclic and cyclic enamides bearing α‐alkyl‐β‐aryl, α‐aryl‐β‐aryl, and α‐aryl‐β‐alkyl substituents...
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