Abstract
An unusual hybrid palladium catalyst containing an anionic chiral Co III complex and a chiral phosphoramidite ligand shows a high capacity for catalyzing asymmetric thioamide-directed C(sp 3 )−H arylation and delivers excellent yield and enantioselectivity (up to 99 % yield, 99 % ee). Significant synergy between the chiral ligand and the anion in terms of stereochemical control was observed. Mechanistic investigations have revealed both the nature of the C−H activation and the origin of the enantioselectivity.
| Original language | English |
|---|---|
| Pages (from-to) | 1803-1807 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 58 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 4 Feb 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Keywords
- C−H functionalization
- chiral phosphoramidites
- cobalt
- palladium
- synergistic effects