Chiral diphosphine and monodentate phosphorus ligands on a spiro scaffold for transition-metal-catalyzed asymmetric reactions

JH Xie, QL Zhou - Accounts of chemical research, 2008 - ACS Publications
The preparation of chiral compounds in enantiomerically pure form is a challenging goal in
modern organic synthesis. The use of chiral metal complex catalysis is a powerful …

A type of structurally adaptable aromatic spiroketal based chiral diphosphine ligands in asymmetric catalysis

X Wang, Z Han, Z Wang, K Ding - Accounts of Chemical Research, 2021 - ACS Publications
Conspectus While spectacular successes have been achieved in homogeneous catalysis
with the use of achiral diphosphine ligands featuring a wide natural bite angle, such as …

[图书][B] Rhodium catalyzed hydroformylation

PWNM Van Leeuwen, C Claver - 2002 - books.google.com
In the last decade there have been numerous advances in the area of rhodium-catalyzed
hydroformylation, such as highly selective catalysts of industrial importance, new insights …

Asymmetric catalysis for the synthesis of spirocyclic compounds

AK Franz, NV Hanhan, NR Ball-Jones - ACS Catalysis, 2013 - ACS Publications
Spirocycles provide an exciting platform to develop and understand the reactivity and
selectivity for a wide variety of catalysts while affording diverse strategies to access …

Catalytic asymmetric synthesis of aromatic spiroketals by SpinPhox/Iridium (I)‐Catalyzed hydrogenation and spiroketalization of α, α′‐Bis (2‐hydroxyarylidene) …

X Wang, Z Han, Z Wang, K Ding - … Chemie International Edition, 2012 - Wiley Online Library
Recently, the chemistry of chiral aromatic spiroketals has received much attention because
they are key substructures in biologically active natural products,[1] pharmaceuticals,[2] and …

Aromatic Spiroketal Bisphosphine Ligands: Palladium‐Catalyzed Asymmetric Allylic Amination of Racemic Morita–Baylis–Hillman Adducts

X Wang, F Meng, Y Wang, Z Han, YJ Chen… - Angewandte Chemie …, 2012 - infona.pl
Showing a backbone: The spiroketal backbone of the bis (phosphine) ligand 1 led to good
regio‐and enantioselectivity in the palladium‐catalyzed asymmetric allylic amination of …

Magical chiral spiro ligands

J Xie, Q Zhou - Acta Chimica Sinica, 2014 - sioc-journal.cn
Transition metal catalyzed asymmetric reaction is a hot issue and a frontier of the research in
current organic chemistry. The design and synthesis of new type of efficient chiral ligands …

Featuring Xantphos

PWNM van Leeuwen, PCJ Kamer - Catalysis Science & Technology, 2018 - pubs.rsc.org
This review highlights the use of a bisphosphine ligand group in homogeneous catalysis.
This ligand group is known as the Xantphos-like ligands, which are based on the generic …

Diastereo‐and Enantioselective Synthesis of Bisbenzannulated Spiroketals and Spiroaminals by Ir/Ag/Acid Ternary Catalysis

WL Yang, XY Shang, T Ni, H Yan, X Luo… - Angewandte …, 2022 - Wiley Online Library
We reported herein an iridium/silver/acid ternary catalytic system to access
bisbenzannulated [6, 6]‐spiroketals in high efficiency with generally high diastereo‐and …

Spiroketal-Based diphosphine ligands in Pd-catalyzed asymmetric allylic amination of Morita–Baylis–Hillman adducts: exceptionally high efficiency and new …

X Wang, P Guo, Z Han, X Wang, Z Wang… - Journal of the American …, 2014 - ACS Publications
Exceptionally high activity (with a TON up to 4750) of the palladium complexes of SKP
ligand was discovered in the catalysis of asymmetric allylic amination of MBH adducts with …