ol0c01213_si_001.pdf (29.03 MB)
Asymmetric Transfer Hydrogenation of o‑Hydroxyphenyl Ketones: Utilizing Directing Effects That Optimize the Asymmetric Synthesis of Challenging Alcohols
journal contributionposted on 2020-04-16, 19:46 authored by Ye Zheng, Guy J. Clarkson, Martin Wills
A systematic range of o-hydroxyphenyl ketones were reduced under asymmetric transfer hydrogenation conditions using the C3-tethered catalyst 2. Two directing effects, i.e., an o-hydroxyphenyl coupled to a bulky aromatic on the opposite side of the ketone substrate, combine in a matched manner to deliver reduction products with very high enantiomeric excess.