Dinuclear salen cobalt complex incorporating Y(OTf)3: enhanced enantioselectivity in the hydrolytic kinetic resolution of epoxides

RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 82699-82703 ◽  
Author(s):  
Deepak Patel ◽  
Ganesh Ram Kurrey ◽  
Sandip S. Shinde ◽  
Pradeep Kumar ◽  
Geon-Joong Kim ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ring Opening ◽  
Kinetic Resolution ◽  
Cobalt Complex ◽  
Promoting Effect ◽  
Hydrolytic Kinetic Resolution ◽  
Ring Opening Of Epoxides ◽  
Asymmetric Ring Opening

Yttrium triflate present in dinuclear salen cobalt complex not only shows a promoting effect on electron transfer, but also assists in the asymmetric ring opening of epoxides with water efficiently.

scholarly journals Asymmetric Ring-Opening of Epoxides Catalyzed by Metal–Salen Complexes

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 705
Author(s):  
Anna Lidskog ◽  
Yutang Li ◽  
Kenneth Wärnmark
Keyword(s):  
Functional Groups ◽  
Organic Synthesis ◽  
Ring Opening ◽  
Kinetic Resolution ◽  
Catalytic Systems ◽  
Salen Complexes ◽  
Epoxide Opening ◽  
Ring Opening Of Epoxides ◽  
One Step ◽  
Asymmetric Ring Opening

The asymmetric ring-opening of epoxides is an important reaction in organic synthesis, since it allows for the enantioselective installation of two vicinal functional groups with specific stereochemistry within one step from a highly available starting material. An effective class of catalysts for the asymmetric ring-opening of epoxides is metal–salen complexes. This review summarizes the development of metal–salen catalyzed enantioselective desymmetrization of meso-epoxides and kinetic resolution of epoxides with various nucleophiles, including the design and application of both homogeneous- and heterogeneous epoxide-opening catalysts as well as multi-metallic covalent and supramolecular catalytic systems.

Catalytic Asymmetric Transformations of Racemic Aziridines

Synthesis ◽  
2020 ◽  
Vol 52 (12) ◽  
pp. 1738-1750 ◽  
Author(s):  
Zhuo Chai
Keyword(s):  
Ring Opening ◽  
Kinetic Resolution ◽  
Short Review ◽  
Asymmetric Transformations ◽  
Parallel Kinetic Resolution ◽  
Donor Acceptor ◽  
Molecular Architectures ◽  
Catalytic Asymmetric ◽  
Asymmetric Transformation ◽  
Asymmetric Ring Opening

The catalytic asymmetric ring-opening transformations of aziridines represent an important strategy for the construction of various chiral nitrogen-containing molecular architectures. This short review covers the progress achieved in the catalytic asymmetric transformation of racemic aziridines, focusing on the catalytic strategies employed for each different type of such aziridines.1 Introduction2 Reaction of Racemic 2-Vinylaziridines3 Reaction of Racemic 2-Alkylaziridines3.1 Regiodivergent Parallel Kinetic Resolution3.2 Kinetic Resolution4 Reaction of Racemic 2-(Hetero)arylaziridines4.1 Kinetic Resolution4.2 Enantioconvergent Transformation5 Reaction of Racemic Donor–Acceptor-Type Aziridines6 Conclusion and Outlook

Asymmetric ring opening of epoxides with cyanides catalysed by chiral binuclear titanium complexes

2014 ◽  
Vol 25 (10-11) ◽  
pp. 838-843 ◽  
Author(s):  
Victor I. Maleev ◽  
Denis A. Chusov ◽  
Lidiya V. Yashkina ◽  
Nikolai S. Ikonnikov ◽  
Michail M. Il’in
Keyword(s):  
Ring Opening ◽  
Titanium Complexes ◽  
Ring Opening Of Epoxides ◽  
Asymmetric Ring Opening

Asymmetric Ring Opening of Epoxides

ChemInform ◽  
2005 ◽  
Vol 36 (24) ◽  
Author(s):  
I. M. Pastor ◽  
M. Yus
Keyword(s):  
Ring Opening ◽  
Ring Opening Of Epoxides ◽  
Asymmetric Ring Opening

Kinetic resolution of 2,3-epoxy 3-aryl ketones via catalytic asymmetric ring-opening with pyrazole derivatives

2015 ◽  
Vol 51 (57) ◽  
pp. 11374-11377 ◽  
Author(s):  
Tianyu Huang ◽  
Lili Lin ◽  
Xiaolei Hu ◽  
Jianfeng Zheng ◽  
Xiaohua Liu ◽  
...  
Keyword(s):  
Ring Opening ◽  
Kinetic Resolution ◽  
Pyrazole Derivatives ◽  
Highly Efficient ◽  
Aryl Ketones ◽  
Catalytic Asymmetric ◽  
Asymmetric Ring Opening

A highly efficient catalytic kinetic resolution of 2,3-epoxy 3-aryl ketones via asymmetric ring-opening with pyrazole derivatives has been achieved by using a chiral N,N′-dioxide–Sc(iii) complex as the catalyst.

ChemInform Abstract: Asymmetric Ring Opening of Epoxides with Cyanides Catalyzed by Chiral Binuclear Titanium Complexes.

ChemInform ◽  
2014 ◽  
Vol 45 (50) ◽  
pp. no-no
Author(s):  
Victor I. Maleev ◽  
Denis A. Chusov ◽  
Lidiya V. Yashkina ◽  
Nikolai S. Ikonnikov ◽  
Michail M. Il'in
Keyword(s):  
Ring Opening ◽  
Titanium Complexes ◽  
Ring Opening Of Epoxides ◽  
Asymmetric Ring Opening
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