Enantioselective, Stereodivergent Hydroazidation and Hydroamination of Allenes Catalyzed by Acyclic Diaminocarbene (ADC) Gold(I) Complexes
- Author(s): Khrakovsky, DA
- Tao, C
- Johnson, MW
- Thornbury, RT
- Shevick, SL
- Toste, FD
- et al.
Published Web Locationhttps://doi.org/10.1002/anie.201601550
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The gold-catalyzed enantioselective hydroazidation and hydroamination reactions of allenes are presented herein. ADC gold(I) catalysts derived from BINAM were critical for achieving high levels of enantioselectivity in both transformations. The sense of enantioinduction is reversed for the two different nucleophiles, allowing access to both enantiomers of the corresponding allylic amines using the same catalyst enantiomer. Chiral allylic azides and amines are obtained by enantioselective hydroazidation and hydroamination of allenes catalyzed by acyclic diaminocarbene gold(I) catalysts derived from BINAM. The sense of enantioinduction is reversed for the two different nucleophiles, allowing easy access to both enantiomers with a single catalyst enantiomer.
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