Asymmetric Catalysis with Metal N-Heterocyclic Carbene Complexes

2006 ◽  
pp. 183-222 ◽  
Author(s):  
Marc Mauduit ◽  
Hervé Clavier
Keyword(s):  
Asymmetric Catalysis ◽  
Carbene Complexes

Chiral bidentate N-heterocyclic carbene complexes of Rh and Pd

2004 ◽  
Vol 82 (12) ◽  
pp. 1781-1787 ◽  
Author(s):  
Li Ren ◽  
Austin C Chen ◽  
Andreas Decken ◽  
Cathleen M Crudden
Keyword(s):  
Asymmetric Catalysis ◽  
Palladium Complexes ◽  
Metal Salts ◽  
Carbene Complexes

The synthesis of a new chiral, bidentate oxazoline/imidazolidene carbene precursor is described. This species is reacted with various metal salts in the presence of a base to generate rhodium and palladium complexes, which are characterized spectroscopically and crystallographically.Key words: chiral N-heterocyclic carbene, rhodium, palladium, oxazolidine, asymmetric catalysis.

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

Metal-N-Heterocyclic Carbene Complexes as Anti-Tumor Agents

2014 ◽  
Vol 21 (10) ◽  
pp. 1220-1230 ◽  
Author(s):  
Chunqi Hu ◽  
Xin Li ◽  
Wei Wang ◽  
Ruoyu Zhang ◽  
Liping Deng
Keyword(s):  
Carbene Complexes

Chiral Bipyridine Derivatives in Asymmetric Catalysis

2003 ◽  
Vol 7 (17) ◽  
pp. 1737-1757 ◽  
Author(s):  
A. Malkov ◽  
P. Kocovsky
Keyword(s):  
Asymmetric Catalysis

Asymmetric Catalysis in Water: Prospects and Problems of Using Hydroxyphosphines and Hydroxyphosphinites as Ligands

2003 ◽  
Vol 7 (17) ◽  
pp. 1759-1770 ◽  
Author(s):  
T. RajanBabu ◽  
Yuan-Yong Yan ◽  
Seunghoon Shin
Keyword(s):  
Asymmetric Catalysis

An Overview of the One-pot Synthesis of Imidazolines

2020 ◽  
Vol 24 (20) ◽  
pp. 2341-2355
Author(s):  
Thaipparambil Aneeja ◽  
Sankaran Radhika ◽  
Mohan Neetha ◽  
Gopinathan Anilkumar
Keyword(s):  
Asymmetric Catalysis ◽  
Organic Compounds ◽  
Ring Opening ◽  
Ecological Impact ◽  
Chiral Auxiliary ◽  
One Pot ◽  
One Pot Synthesis ◽  
The One ◽  
Synthetic Intermediate ◽  
Heterocyclic Moiety

One-pot syntheses are a simple, efficient and easy methodology, which are widely used for the synthesis of organic compounds. Imidazoline is a valuable heterocyclic moiety used as a synthetic intermediate, chiral auxiliary, chiral catalyst and a ligand for asymmetric catalysis. Imidazole is a fundamental unit of biomolecules that can be easily prepared from imidazolines. The one-pot method is an impressive approach to synthesize organic compounds as it minimizes the reaction time, separation procedures, and ecological impact. Many significant one-pot methods such as N-bromosuccinimide mediated reaction, ring-opening of tetrahydrofuran, triflic anhydrate mediated reaction, etc. were reported for imidazoline synthesis. This review describes an overview of the one-pot synthesis of imidazolines and covers literature up to 2020.

Novel Chiral Ligands for Palladium-catalyzed Asymmetric Allylic Alkylation/ Asymmetric Tsuji-Trost Reaction: A Review

2019 ◽  
Vol 23 (11) ◽  
pp. 1168-1213 ◽  
Author(s):  
Samar Noreen ◽  
Ameer Fawad Zahoor ◽  
Sajjad Ahmad ◽  
Irum Shahzadi ◽  
Ali Irfan ◽  
...  
Keyword(s):  
Asymmetric Catalysis ◽  
Enantioselective Synthesis ◽  
Chiral Ligands ◽  
Allylic Alkylation ◽  
Research Groups ◽  
Asymmetric Allylic Alkylation ◽  
Catalytic Potential ◽  
Long Time ◽  
Palladium Catalyzed ◽  
Alkylation Reactions

Background: Asymmetric catalysis holds a prestigious role in organic syntheses since a long time and chiral inductors such as ligands have been used to achieve the utmost desired results at this pitch. The asymmetric version of Tsuji-Trost allylation has played a crucial role in enantioselective synthesis. Various chiral ligands have been known for Pdcatalyzed Asymmetric Allylic Alkylation (AAA) reactions and exhibited excellent catalytic potential. The use of chiral ligands as asymmetric inductors has widened the scope of Tsuji-Trost allylic alkylation reactions. Conclusion: Therefore, in this review article, a variety of chiral inductors or ligands have been focused for palladium catalyzed asymmetric allylic alkylation (Tsuji-Trost allylation) and in this regard, recently reported literature (2013-2017) has been described. The use of ligands causes the induction of enantiodiscrimination to the allylated products, therefore, the syntheses of various kinds of ligands have been targeted by many research groups to employ in Pd-catalyzed AAA reactions.

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