Strategies of In Situ Generated Magnesium Catalysis in Asymmetric Reactions DOI
Dongxu Yang, Linqing Wang

Synlett, Journal Year: 2021, Volume and Issue: 32(13), P. 1309 - 1315

Published: March 5, 2021

Abstract Magnesium (Mg) is a cheap, non-toxic, and recyclable alkaline earth metal that constitutes about 2% weight in the Earth’s crust. The use of magnesium catalysts to forge chiral moieties molecules highly attractive. Based on our work recent years, we describe current progress development situ generated their application asymmetric synthesis. In this perspective, critically concise classification catalytic modes, with relevant examples, presented, representative mechanisms each category are discussed. Building established diverse strategies, one can foresee more innovative structurally creative will be developed overcome formidable challenges enantioselective reactions. 1 Introduction 2 Catalysts Generated Situ from Chiral Ligands Containing Dual Reactive Hydrogens 3 Monoanionic 4 Bimetallic Polymetallic Assembled 5 Summary Outlook

Language: Английский

Design of a chiral molecular pocket in a Ni(II) complex to improve stereoselectivity in the kinetic resolution of racemic epoxides with CO2 DOI Creative Commons
Mikhail A. Emelyanov,

Alexander V. Bachinskiy,

Yana V. Derkach

et al.

Tetrahedron Chem, Journal Year: 2024, Volume and Issue: 12, P. 100115 - 100115

Published: Nov. 28, 2024

Language: Английский

Citations

2

Construction of Optically Active 2H‐ and 3H‐Pyrroles by Cyclization and Chirality Maintaining 1,5‐Ester Shift Reactions DOI
Dan Li, Linqing Wang, Yuling Yang

et al.

Advanced Synthesis & Catalysis, Journal Year: 2019, Volume and Issue: 361(16), P. 3744 - 3750

Published: June 7, 2019

Abstract Construction of enantioenriched 2 H ‐ and 3 ‐pyrroles are achieved in current work by using readily available α‐isocyanoacetates alkynyl ketones as precursors. To realize the asymmetric synthesis ‐pyrroles, a proper situ generated magnesium catalytic method was developed. On other hand, discovery an aluminium mediated chirality maintaining 1,5 ‐ester shift reaction promoted successful ‐pyrroles. magnified image

Language: Английский

Citations

18

Site-selective 1,3-double functionalization of arenes using para-quinol, C–N, and C–C/C–P three-component coupling DOI

Saddam Husen,

Anil Chauhan,

Ravindra Kumar

et al.

Green Chemistry, Journal Year: 2020, Volume and Issue: 22(4), P. 1119 - 1124

Published: Jan. 1, 2020

A catalytic and site-selective approach has been demonstrated for dual functionalization of arenes via cross-coupling reactions p-quinols with amines isocyanides/phosphites.

Language: Английский

Citations

18

Ylide‐Functionalization via Metalated Ylides: Synthesis and Structural Properties DOI Creative Commons

Christopher Schwarz,

Thorsten Scherpf,

Ilja Rodstein

et al.

ChemistryOpen, Journal Year: 2019, Volume and Issue: 8(5), P. 621 - 626

Published: May 1, 2019

Abstract The α‐metallated ylides [Ph 3 P−C−Z] − M + (with Z=SO 2 Tol or CN and M=Na K) were used as versatile nucleophiles for the facile access to ylide‐substituted compounds. Halogenations, alkylations, carbonylations functionalization reactions with main group element halides easily accomplished by simple trapping appropriate electrophiles. X‐ray crystallographic studies of all compounds – including first structures α‐fluorinated P‐ylides showed remarkable differences in ylide backbone depending on substituents. In fluorinated compounds, a change from fully planar pyramidalized ylidic carbon centre was observed despite strongly anion‐stabilizing ability yldiide substituent. π‐Donation substituent also resulted geometric restrictions steric electronic properties introduced

Language: Английский

Citations

16

Strategies of In Situ Generated Magnesium Catalysis in Asymmetric Reactions DOI
Dongxu Yang, Linqing Wang

Synlett, Journal Year: 2021, Volume and Issue: 32(13), P. 1309 - 1315

Published: March 5, 2021

Abstract Magnesium (Mg) is a cheap, non-toxic, and recyclable alkaline earth metal that constitutes about 2% weight in the Earth’s crust. The use of magnesium catalysts to forge chiral moieties molecules highly attractive. Based on our work recent years, we describe current progress development situ generated their application asymmetric synthesis. In this perspective, critically concise classification catalytic modes, with relevant examples, presented, representative mechanisms each category are discussed. Building established diverse strategies, one can foresee more innovative structurally creative will be developed overcome formidable challenges enantioselective reactions. 1 Introduction 2 Catalysts Generated Situ from Chiral Ligands Containing Dual Reactive Hydrogens 3 Monoanionic 4 Bimetallic Polymetallic Assembled 5 Summary Outlook

Language: Английский

Citations

13