Molecular assemblies of diazafluorenone Schiff-base amphiphiles. III.13C NMR investigations of reversed micelles in deuteriochloroform

1996 ◽  
Vol 6 (3) ◽  
pp. 281-289 ◽  
Author(s):  
Xiangping Qian ◽  
Zihou Tai ◽  
Hongzhe Sun
Keyword(s):  
Schiff Base ◽  
13C Nmr ◽  
Reversed Micelles ◽  
Molecular Assemblies

Synthesis and Characterization of Some New Esters Containing Heterocyclic and Derived From Azo Dyes

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Zena G. Alrecabi ◽  
Zainab Amer ◽  
Naeemah Al-Lami
Keyword(s):  
Schiff Base ◽  
13C Nmr ◽  
Azo Dyes ◽  
Spectral Methods ◽  
Anthranilic Acid ◽  
Heterocyclic Compounds ◽  
Synthesis And Characterization ◽  
Cooh Group ◽  
Molecular Weights

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.

Intramolecular cyclization of the pyridoxal-histidine Schiff base controlled in reversed micelles

1983 ◽  
Vol 48 (14) ◽  
pp. 2423-2424 ◽  
Author(s):  
Junzo Sunamoto ◽  
Hiroki Kondo ◽  
Junichi Kikuchi ◽  
Hiroyuki Yoshinaga ◽  
Satoshi Takei
Keyword(s):  
Schiff Base ◽  
Intramolecular Cyclization ◽  
Reversed Micelles

Water inclusion mediated structural diversity and the role of H-bonds in molecular assemblies of manganese(III) bicompartmental Schiff-base complexes

2016 ◽  
Vol 453 ◽  
pp. 169-178 ◽  
Author(s):  
Angel Gutiérrez ◽  
M. Felisa Perpiñán ◽  
Ana E. Sánchez ◽  
M. Carmen Torralba ◽  
Vicente González
Keyword(s):  
Schiff Base ◽  
Structural Diversity ◽  
Schiff Base Complexes ◽  
Molecular Assemblies ◽  
Water Inclusion

scholarly journals Synthesis and Characterization of some new Formazan Derivatives from 2-Amino-4-Hydroxy-6-Methyl Pyrimidine and Study the Biological Activity (Anti-Bacteria and Anti-Cancer)

2020 ◽  
Vol 11 (01) ◽  
pp. 53-59
Author(s):  
Shaimaa Adnan ◽  
Abdullah Shakir
Keyword(s):  
Fourier Transform ◽  
Biological Activity ◽  
Schiff Base ◽  
Infrared Spectroscopy ◽  
13C Nmr ◽  
Synthesis And Characterization ◽  
Compound A ◽  
Anti Cancer ◽  
Base Derivative

This study involves a synthesis of some formazan derivatives starting from react chloro acetyl chlorid with 2-amino-4-hydroxy-6-methyl pyrimidine to gate compound (a), (a) react with hydrazine hydrate to give compound (b) also (b) react with 3-4-dimethoxy benzaldehyd to product Schiff base derivative (c) then (c) react with deferent amin derivatives to get formazan derivatives. All these compounds characterized by 13C-NMR, fourier transform infrared spectroscopy (FTIR), 1HMNR. After that, we study the biological activity for all formazan derivatives toward two different kinds of bacteria and anti-cancer.

A Novel and Cost Effective Isatin Based Schiff Base Fluorophore: Highly Efficient “Turn-Off” Fluorescent Sensor for the Selective Detection of Cysteine in Aqueous Medium

2021 ◽  
Author(s):  
SAVITHA D P ◽  
Deepa Sebastian ◽  
Anjali Krishna G ◽  
P. V. Mohanan
Keyword(s):  
Mass Spectrometry ◽  
Schiff Base ◽  
Aqueous Medium ◽  
13C Nmr ◽  
Schiff Base Ligand ◽  
Fluorescent Sensor ◽  
Cost Effective ◽  
Spectroscopic Methods ◽  
Selective Detection ◽  
Uv Visible

A novel schiff base ligand 3-(2-Amino-4, 5-dimethyl-phenylimino)-5-phenyl-1, 3-dihydro-indol-2-one (MPD 5MI) and was characterized using spectroscopic methods including UV visible, Infrared, 1H-NMR, 13C-NMR and mass spectrometry. The essential fluorescence properties such...

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