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A Bulky Biaryl Phosphine Ligand Allows for Palladium-Catalyzed Amidation of Five-Membered Heterocycles as Electrophiles

✍ Scribed by Mingjuan Su; Prof. Dr. Stephen L. Buchwald

Book ID
112000057
Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
566 KB
Volume
124
Category
Article
ISSN
0044-8249

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New Chiral N-Heterocyclic Carbene Ligand
New Chiral N-Heterocyclic Carbene Ligands in Palladium-Catalyzed α-Arylations of Amides: Conformational Locking through Allylic Strain as a Device for Stereocontrol
✍ Yi-Xia Jia; Dmitry Katayev; Gérald Bernardinelli; Thomas M. Seidel; E. Peter Kün 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 419 KB 👁 1 views

## Abstract New Enders/Herrmann‐type chiral N‐heterocyclic carbene (NHC) ligands have been developed and applied in asymmetric palladium‐catalyzed intramolecular α‐arylations of amides. The best ligands feature the bulky __tert__‐butyl group and __ortho__‐substituted aryl groups at the stereogenic