A highly enantioselective synthesis of cyclic α-amino acids involving a one-pot, single catalyst, tandem hydrogenation–hydroformylation sequenceElectronic supplementary information (ESI) available: experimental information. See http://www.rsc.org/suppdata/cc/b2/b200374k/

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Abstract
Tandem enantioselective hydrogenation followed by a hydroformylation–cyclisation sequence leading to cyclic α-amino acids with ee’s >95% can be achieved in a single pot, one catalyst system by successive reactions of prochiral dienamide esters with H2 followed by H2/CO using Rh(I)-DuPHOS.