Synthesis of New Chiral Mn(III)-Salen Complexes as Recoverable and Reusable Homogeneous Catalysts for Asymmetric Epoxidation of Styrenes and Chromenes

2021 ◽  
Author(s):  
Pooja Chaudhary ◽  
Geeta Devi Yadav ◽  
Krishna K. Damodaran ◽  
Surendra Singh
Keyword(s):  
Aerobic Oxidation ◽  
Inert Atmosphere ◽  
Asymmetric Epoxidation ◽  
Homogeneous Catalysts ◽  
Salen Complexes ◽  
Salen Ligands

New chiral Mn(III)-salen complexes 1a-e and 2a-e were synthesized from the reaction of C2-symmetric chiral salen ligands and Mn(CH3COO)2.4H2O under an inert atmosphere followed by aerobic oxidation. These complexes were...

Ligand-centred oxidative chemistry in sterically hindered salen complexes: an interesting case with nickel

2016 ◽  
Vol 45 (27) ◽  
pp. 10866-10877 ◽  
Author(s):  
F. Thomas
Keyword(s):  
Nickel Complexes ◽  
Redox Chemistry ◽  
Interesting Case ◽  
Salen Complexes ◽  
Sterically Hindered ◽  
Salen Ligands

Salen ligands are ubiquitous chelators, whose nickel complexes readily undergo a ligand-centred redox chemistry in non-coordinating solvents.

Towards lignin valorisation: comparing homogeneous catalysts for the aerobic oxidation and depolymerisation of organosolv lignin

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70502-70511 ◽  
Author(s):  
Christian Díaz-Urrutia ◽  
Wei-Ching Chen ◽  
Charles-Oneil Crites ◽  
Jennifer Daccache ◽  
Ilia Korobkov ◽  
...  
Keyword(s):  
Renewable Resources ◽  
Aerobic Oxidation ◽  
Homogeneous Catalysts ◽  
Organosolv Lignin ◽  
Potential Source ◽  
Unique Potential

Lignin is a unique potential source of aromatic chemicals derived from renewable resources.

Highly efficient metal(iii) porphyrin and salen complexes for the polymerization of rac-lactide under ambient conditions

2019 ◽  
Vol 48 (10) ◽  
pp. 3223-3230 ◽  
Author(s):  
Siriwan Praban ◽  
Parichat Piromjitpong ◽  
Vagulejan Balasanthiran ◽  
Savithra Jayaraj ◽  
Malcolm H. Chisholm ◽  
...  
Keyword(s):  
Room Temperature ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Salen Complexes ◽  
Salen Ligands ◽  
Lactide Polymerization

Metal(iii) complexes supported by porphyrin and salen ligands were highly efficient for rac-lactide polymerization at room temperature giving isotactic-enriched PLA.

Zirconium phosphonates-supported chiral Mn (III) Salen complexes for the asymmetric epoxidation of unfunctionalized olefins

2009 ◽  
Vol 10 (8) ◽  
pp. 1261-1266 ◽  
Author(s):  
Zheng Xu ◽  
Xuebing Ma ◽  
Yueyue Ma ◽  
Qiang Wang ◽  
Jinqin Zhou
Keyword(s):  
Asymmetric Epoxidation ◽  
Salen Complexes ◽  
Zirconium Phosphonates
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