Chiral palladium pincer complexes for asymmetric catalytic reactions

2019 ◽  
Vol 17 (25) ◽  
pp. 6069-6098 ◽  
Author(s):  
Jin-Kui Liu ◽  
Jun-Fang Gong ◽  
Mao-Ping Song
Keyword(s):  
Asymmetric Catalysis ◽  
Catalytic Reactions ◽  
Pincer Complexes ◽  
Asymmetric Catalytic

This review covers the methods for the preparation of chiral palladium(ii) pincer complexes and their applications in asymmetric catalysis.

Synthesis, characterization, and application in asymmetric catalysis of dendrimers containing chiral ferrocenyl diphosphines

2001 ◽  
Vol 79 (11) ◽  
pp. 1762-1774 ◽  
Author(s):  
Christoph Köllner ◽  
Antonio Togni
Keyword(s):  
Asymmetric Catalysis ◽  
Isophthalic Acid ◽  
Tricarboxylic Acid ◽  
Catalytic Reactions ◽  
Allylic Substitution ◽  
Asymmetric Catalytic ◽  
Ferrocenyl Ligands ◽  
The One ◽  
Parent Ligand ◽  
Dimethyl Itaconate

Starting from the functionalized Josiphos derivatives (R)-1-[(S)-2-(diphenylphosphino)-1'-(dimethyl-3''-aminopropylsilyl)-ferrocenyl]ethyldicyclohexylphosphine ((R)-(S)-3), (R)-1-[(S)-2-(diphenylphosphino)-1'-(hydroxy methyl) ferrocenyl]ethyldicyclohexylphosphine ((R)-(S)-4), and (R)-1-[(S)-2-(diphenylphosphino)-1'-(3''-hydroxy propyl)ferrocenyl]ethyldicyclohexylphosphine ((R)-(S)-5), a series of dendrimers containing up to sixteen ferrocenyl diphosphine units were prepared. Dendrimer cores are based on benzene 1,3,5-tricarboxylic acid and 1,3,5,7-adaman tanetetracarboxylic acid, with 5-substituted isophthalic acid derivatives constituting the branching units. The dendrimers have been used in three different asymmetric catalytic reactions: Rh-catalyzed hydrogenation of dimethyl itaconate, Pd-catalyzed allylic substitution, and Rh-catalyzed hydroboration of styrene with catecholborane. In all three reactions the selectivity obtained with the dendrimers was very similar to the one obtained with the parent ligand Josiphos.Key words: dendrimer, asymmetric catalysis, ferrocenyl ligands, hydrogenation.

scholarly journals Chiral ligands designed in China

2017 ◽  
Vol 4 (3) ◽  
pp. 326-358 ◽  
Author(s):  
Yuanyuan Liu ◽  
Wenbo Li ◽  
Junliang Zhang
Keyword(s):  
Organic Chemistry ◽  
Asymmetric Catalysis ◽  
Catalytic Reactions ◽  
Asymmetric Reactions ◽  
Chiral Ligands ◽  
Excellent Performance ◽  
Asymmetric Catalytic ◽  
Design Concepts ◽  
Research Areas ◽  
The World

Abstract Asymmetric catalysis has become an indispensable and productive field within the Chinese organic chemistry society. The design of chiral ligands is one of the most prominent research areas in this field. Since the late 1990s, Chinese organic chemists have developed numerous chiral ligands possessing novel chiral skeletons and design concepts. Some of these ligands have been widely adopted and can be regarded as ‘privileged ligand’, which have shown excellent performance in many asymmetric catalytic reactions. In this review, we provide an overview of the chiral ligands designed by Chinese scientists with the aim of promoting the development of this area in China and with the hope of encouraging more scientists across the world to use these ligands when designing asymmetric reactions.

Asymmetric Transformations of α-Hydroxy Enamides Catalyzed by Chiral Brønsted Acids

Synlett ◽  
2019 ◽  
Vol 30 (08) ◽  
pp. 869-874 ◽  
Author(s):  
Subramani Rajkumar ◽  
Jiawen Wang ◽  
Xiaoyu Yang
Keyword(s):  
Asymmetric Catalysis ◽  
Reactive Intermediates ◽  
Catalytic Reactions ◽  
Nucleophilic Additions ◽  
Acid Catalysts ◽  
Asymmetric Transformations ◽  
Asymmetric Catalytic ◽  
Chiral Bronsted Acid ◽  
Chiral Brønsted Acids ◽  
Near Future

2-Aminoallyl cations are reactive intermediates that undergo diverse reactions, such as cycloadditions, direct nucleophilic additions, Nazarov electrocyclizations, and rearrangements. We review recent development in asymmetric catalytic reactions (nucleophilic additions and Nazarov electrocyclizations) based on chiral counteranion-paired 2-aminoallyl cation intermediates generated through activation of α-hydroxy enamides in the presence of chiral Brønsted acid catalysts. With an understanding of their asymmetric catalysis modes and mechanisms, we expect more asymmetric catalytic reactions will be developed on the basis of this strategy in the near future.

ChemInform Abstract: Synthesis of Axially Chiral Biaryl Compounds by Asymmetric Catalytic Reactions with Transition Metals

ChemInform ◽  
2016 ◽  
Vol 47 (18) ◽  
Author(s):  
Pauline Loxq ◽  
Eric Manoury ◽  
Rinaldo Poli ◽  
Eric Deydier ◽  
Agnes Labande
Keyword(s):  
Transition Metals ◽  
Catalytic Reactions ◽  
Asymmetric Catalytic ◽  
Axially Chiral ◽  
Biaryl Compounds

Asymmetric Catalytic Reactions Using P*-Mono-, P*,N- and P*,P*-Bidentate Diamidophosphites with BINOL Backbones and 1,3,2-Diazaphospholidine Moieties: Differences in the Enantioselectivity

2010 ◽  
Vol 352 (14-15) ◽  
pp. 2599-2610 ◽  
Author(s):  
Konstantin N. Gavrilov ◽  
Sergey V. Zheglov ◽  
Eugenie A. Rastorguev ◽  
Nikolay N. Groshkin ◽  
Marina G. Maksimova ◽  
...  
Keyword(s):  
Catalytic Reactions ◽  
Asymmetric Catalytic

scholarly journals Synthesis of new derivatives of copper complexes of Josiphos family ligands for applications in asymmetric catalysis

2014 ◽  
Vol 4 (7) ◽  
pp. 1997-2005 ◽  
Author(s):  
R. Oost ◽  
J. Rong ◽  
A. J. Minnaard ◽  
S. R. Harutyunyan
Keyword(s):  
Asymmetric Catalysis ◽  
Copper Complexes ◽  
Grignard Reagents ◽  
Aromatic Ketones ◽  
Asymmetric Catalytic ◽  
Catalytic Addition ◽  
Derivatives Of

New derivatives of copper complexes of Josiphos family ligands have been prepared and studied in asymmetric catalytic addition of Grignard reagents to enones, enoates and aromatic ketones.

Sign in / Sign up

Export Citation Format

Share Document