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Valmet Chiral Schiff‐Base Ligands And Their Copper(II) Complexes as Organo, Homogeneous and Heterogeneous Catalysts for Henry, Cyanosilylation and Aldol Coupling Reactions

Zinnia Arora; Diana-Ioana Eftemie; Adela Spinciu; Catalin Maxim; Anamaria Hanganu; Madalina Tudorache; Bogdan Cojocaru; +4 Authors

Valmet Chiral Schiff‐Base Ligands And Their Copper(II) Complexes as Organo, Homogeneous and Heterogeneous Catalysts for Henry, Cyanosilylation and Aldol Coupling Reactions

Abstract

International audience; Cyanosilylation, aldol coupling and asymmetric Henry reactions were carried out with L- and D-valmet ligands in different configurations: i) coordinated to sodium ions, as organocatalysts, with week base properties, ii) complexes with copper(II), as homogeneous catalysts, and iii) immobilized copper(II) complexes onto graphene oxide (GO) as heterogeneous catalysts. For the reaction of benzaldehyde and nitromethane in water these afforded an asymmetric Henry reaction, with a spectacular increase of the conversion and ee (92.5 and 95.8 %, respectively) after the deposition on GO. Ligand complexed copper was also effective for cyanosilylation and Aldol coupling reaction.

Country
France
Subjects by Vocabulary

Microsoft Academic Graph classification: Catalysis Ligand Chemistry Benzaldehyde chemistry.chemical_compound Polymer chemistry Copper chemistry.chemical_element Schiff base Coupling reaction Nitroaldol reaction Aldol reaction

Keywords

Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Catalysis, Aldol reaction, Cu-complex, Cyanosilylation, Immobilization, Henry reaction, L- and D-valmet ligands, [CHIM.COOR]Chemical Sciences/Coordination chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, [CHIM.ORGA]Chemical Sciences/Organic chemistry

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    1
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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Funded by
EC| CCIMC
Project
CCIMC
Coordination chemistry inspires molecular catalysis
  • Funder: European Commission (EC)
  • Project Code: 860322
  • Funding stream: H2020 | MSCA-ITN-EJD
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