ChemInform Abstract: Asymmetric Allylation of Sulfonyl Imines Catalyzed by in situ Generated Cu(II) Complexes of Chiral Amino Alcohol Based Schiff Bases.

ChemInform ◽  
2015 ◽  
Vol 46 (16) ◽  
pp. no-no
Author(s):  
Debashis Ghosh ◽  
Prasanta Kumar Bera ◽  
Manish Kumar ◽  
Sayed H. R. Abdi ◽  
Noor-ul H. Khan ◽  
...  
Keyword(s):  
Schiff Bases ◽  
Amino Alcohol ◽  
Asymmetric Allylation

Asymmetric allylation of sulfonyl imines catalyzed by in situ generated Cu(ii) complexes of chiral amino alcohol based Schiff bases

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56424-56433 ◽  
Author(s):  
Debashis Ghosh ◽  
Prasanta Kumar Bera ◽  
Manish Kumar ◽  
Sayed H. R. Abdi ◽  
Noor-ul H. Khan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Bases ◽  
Amino Alcohol ◽  
Enantioselective Synthesis ◽  
Asymmetric Allylation

We have developed a catalytic route for enantioselective synthesis of homoallyl amines through Cu(ii)-Schiff base catalyzed allylation of aryl N-sulfonylimines.

scholarly journals Synthesis and Biological Evaluation of New (−)-Gossypol-Derived Schiff Bases and Hydrazones

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Vu Van Vu ◽  
Trinh Thi Nhung ◽  
Nguyen Thi Thanh ◽  
Luu Van Chinh ◽  
Vu Dinh Tien ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Schiff Bases ◽  
Cell Lines ◽  
Human Cancer ◽  
Structural Data ◽  
Biological Evaluation ◽  
Human Cancer Cell Lines ◽  
High Yields ◽  
Synthesis And Biological Evaluation

A series of 14 new (-)-gossypol Schiff bases and hydrazones have been synthesized via an in situ procedure in high yields. Structural data showed that all target compounds exist as the enamine tautomer. Bioassays showed that several compounds exhibited cytotoxic effects against three human cancer cell lines. Compound 8a showed the greatest cytotoxic effect against hepatocellular carcinoma (HepG2), lung carcinoma (LU-1), and breast cancer (MCF-7) cell lines with IC50 values of 20.93, 13.58, and 9.40 μM, respectively. However, in an antibacterial test, compounds 8a and 8b inhibited Staphylococcus aureus and Bacillus cereus and compound 8e inhibited only Staphylococcus aureus at the same MIC values of 1024 μg/ml.

Interfacial Assembly and Coordination of a Series of Schiff Base Compounds with Aromatic Spacer

2012 ◽  
Vol 581-582 ◽  
pp. 649-652
Author(s):  
Jing Xin Zhou ◽  
Ti Feng Jiao ◽  
Adan Li ◽  
Xu Hui Li ◽  
Xu Duo Bai
Keyword(s):  
Schiff Bases ◽  
Morphological Characterization ◽  
Interfacial Assembly ◽  
Force Microscopy ◽  
Atomic Force ◽  
Langmuir Blodgett Films ◽  
Microscopy Measurement ◽  
Aggregation Behaviors ◽  
Phase Behaviors

A series of Schiff bases derivatives with aromatic spacer have been designed and their interfacial phase behaviors and coordination with Cu(II) ions were investigated. It has been found that on the subphase containing Cu(II) ions, all of the Schiff bases can coordinate with Cu(II) in situ in the spreading films, especially for NSB-C16 with the obvious conformational change of alkyl chains. The in situ Cu(II)-coordinated films could be transferred onto solid substrates and subsequently characterized by various spectroscopic methods such as UV-vis and Fourier transform infrared spectra as well as the morphological characterization with atomic force microscopy measurement. Depending on the different groups, these amphiphiles showed different aggregation behaviors in the Langmuir-Blodgett films.

scholarly journals Synthesis, Structural Investigation and Antimicrobial Properties of Macrocyclic Zinc(II) Complexes with N2O2-Donor Schiff Bases Incorporating 1,2,4-Triazole Ring

2020 ◽  
Vol 32 (12) ◽  
pp. 3151-3156
Keyword(s):  
Schiff Bases ◽  
Structural Investigation ◽  
Thermal Studies ◽  
Antimicrobial Properties ◽  
Triazole Ring ◽  
Pathogenic Fungi ◽  
Elemental Analyses ◽  
Coordinated Water ◽  
In Situ Reactions

A novel series of nano-sized zinc(II) complexes of type [{Zn(M)(H2O)2}(CH3COO–)2] (where M = macrocyclic ligands) has been synthesized by the in situ reactions of Schiff bases derived from 3-(phenyl/substituted phenyl)-4-amino-5-hydrazino-1,2,4-triazoles, salicyldehyde/2-hydroxy-1- naphthaldehyde and 1,4-dibromobutane/1,5-dibromopentane in presence of zinc(II) acetate dihydrate in absolute ethanol. The structures of all these zinc(II) complexes were established on the basis of elemental analyses and spectral data (IR, 1H NMR and 13C NMR). Scanning electron microscopy studies have been carried out to investigate the particle size and surface morphology of a particular complex while thermal studies confirm the presence of coordinated water molecules in all the zinc(II) complexes. The antimicrobial effects of all the synthesized complexes were studied against different species of pathogenic fungi and bacteria.

In situ Catalytic Generation of Allylcopper Species for Asymmetric Allylation: Toward 1H-Isochromene Skeletons

2013 ◽  
Vol 52 (28) ◽  
pp. 7177-7180 ◽  
Author(s):  
Junya Kawai ◽  
Prasanna Kumara Chikkade ◽  
Yohei Shimizu ◽  
Motomu Kanai
Keyword(s):  
Asymmetric Allylation

Research on Interfacial Assembly and Coordination of Two Bolaform Schiff Base Compounds with Aromatic Spacer

2012 ◽  
Vol 236-237 ◽  
pp. 806-809
Author(s):  
Ti Feng Jiao ◽  
Jing Xin Zhou
Keyword(s):  
Schiff Bases ◽  
Morphological Characterization ◽  
Interfacial Assembly ◽  
Force Microscopy ◽  
Atomic Force ◽  
Langmuir Blodgett Films ◽  
Microscopy Measurement ◽  
Aggregation Behaviors ◽  
Phase Behaviors

wo bolaform Schiff bases derivatives with aromatic spacer have been designed and their interfacial phase behaviors and coordination with Cu(II) ions were investigated. It has been found that on the subphase containing Cu(II) ions, both Schiff bases can coordinate with Cu(II) in situ in the spreading films. The in situ Cu(II)-coordinated films could be transferred onto solid substrates and subsequently characterized by various spectroscopic methods such as UV-vis and Fourier transform infrared spectra as well as the morphological characterization with atomic force microscopy measurement. Depending on the different headgroups, both amphiphiles showed different aggregation behaviors in the Langmuir-Blodgett films.

Chiral Amino Alcohol Derived Bis-phosphoramidite Pincer Palladium Complexes and Their Applications in Asymmetric Allylation of Aldimines

2010 ◽  
Vol 29 (6) ◽  
pp. 1379-1387 ◽  
Author(s):  
Jie Li ◽  
Martin Lutz ◽  
Anthony L. Spek ◽  
Gerard P. M. van Klink ◽  
Gerard van Koten ◽  
...  
Keyword(s):  
Amino Alcohol ◽  
Palladium Complexes ◽  
Asymmetric Allylation
Sign in / Sign up

Export Citation Format

Share Document