Iridium-catalyzed asymmetric allylic substitution reactions

Q Cheng, HF Tu, C Zheng, JP Qu, G Helmchen… - Chemical …, 2018 - ACS Publications
In this review, we summarize the origin and advancements of iridium-catalyzed asymmetric
allylic substitution reactions during the past two decades. Since the first report in 1997, Ir …

Asymmetric transition metal-catalyzed allylic alkylations

BM Trost, DL Van Vranken - Chemical Reviews, 1996 - ACS Publications
Efficient and reliable amplification of chirality has borne its greatest fruit with transition metal-
catalyzed reactions since enantiocontrol may often be imposed by replacing an achiral or …

Asymmetric transition-metal-catalyzed allylic alkylations: applications in total synthesis

BM Trost, ML Crawley - Chemical reviews, 2003 - ACS Publications
Development of asymmetric metal-catalyzed reactions has played a significant role in
allowing synthetic access to biologically important molecules. While the most widely utilized …

Nitrogen-containing ligands for asymmetric homogeneous and heterogeneous catalysis

F Fache, E Schulz, ML Tommasino… - Chemical …, 2000 - ACS Publications
Practical asymmetric catalysis using transition metal complexes was inspired by the work of
Kagan1 and Knowles. 2 Their important results, based on the use of chiral phosphines as …

Asymmetric allylic alkylation, an enabling methodology

BM Trost - The Journal of Organic Chemistry, 2004 - ACS Publications
The diversity of mechanisms for enantiodiscrimination and of bond types that can be formed
make Pd-catalyzed asymmetric allylic alkylation a powerful key step for simplification of …

Phosphite-containing ligands for asymmetric catalysis

PWNM Leeuwen, PCJ Kamer, C Claver… - Chemical …, 2011 - ACS Publications
Discovering efficient methods for gaining access to enantiomerically pure compounds in the
development of pharmaceuticals, agrochemicals, and flavors has been a great challenge for …

Regio-and enantioselective allylic amination of achiral allylic esters catalyzed by an iridium− phosphoramidite complex

T Ohmura, JF Hartwig - Journal of the American Chemical Society, 2002 - ACS Publications
A new catalytic asymmetric process, the iridium-catalyzed enantioselective allylic amination
of (E)-cinnamyl and terminal aliphatic allylic carbonates, was developed by exploring …

Enantioselective hydrogenation of imines with chiral (phosphanodihydrooxazole) iridium catalysts

P Schnider, G Koch, R Prétôt, G Wang… - … A European Journal, 1997 - Wiley Online Library
Cationic iridium (I) complexes of chiral phosphanodihydrooxazoles were used as catalysts
for the enantioselective hydrogenation of prochiral N‐alkyl and N‐aryl imines. The …

Identification of an activated catalyst in the iridium-catalyzed allylic amination and etherification. Increased rates, scope, and selectivity

CA Kiener, C Shu, C Incarvito… - Journal of the American …, 2003 - ACS Publications
Studies were conducted to determine possible intermediates in the highly enantioselective,
iridium-catalyzed amination and etherification of allylic carbonates, and these studies …

Iridium-catalysed asymmetric allylic substitutions

G Helmchen, A Dahnz, P Dübon, M Schelwies… - Chemical …, 2007 - pubs.rsc.org
Ir-Catalysed allylic substitution is supplementing the traditional Pd-catalysed variant. With
simple, easily available monosubstituted allylic acetates and carbonates as substrates, Ir …