ChemInform Abstract: Oxidative Transformation of Alcohols and Oximes to Carbonyl Compounds by Quinolinium Fluorochromate (QFC).

ChemInform ◽  
2010 ◽  
Vol 31 (31) ◽  
pp. no-no
Author(s):  
G. Abraham Rajkumar ◽  
Banumathi Arabindoo ◽  
V. Murugesan
Keyword(s):  
Carbonyl Compounds ◽  
Oxidative Transformation ◽  
Quinolinium Fluorochromate

A remote coordination booster enhances the catalytic efficiency by accelerating the generation of an active catalyst

2016 ◽  
Vol 52 (16) ◽  
pp. 3384-3387 ◽  
Author(s):  
Suraj K. Gupta ◽  
Joyanta Choudhury
Keyword(s):  
Carbonyl Compounds ◽  
Active Catalyst ◽  
Catalytic Efficiency ◽  
Catalytic Site ◽  
Excellent Performance ◽  
Oxidative Transformation

A RuII(terpy)2 unit incorporated remotely to the catalytic site acts as a “coordination booster” for enhancing the catalytic efficiency to achieve excellent performance in the selective oxidative transformation of alkenes and alkynes to carbonyl compounds.

Quinolinium Fluorochromate: An Efficient and Selective Reagent for the Deprotection of Semicarbazones under Non-Aqueous Conditions

2005 ◽  
Vol 2005 (1) ◽  
pp. 35-37 ◽  
Author(s):  
Mahmoud Tajbakhsh ◽  
Kamal Alimohammadi ◽  
Hossein Behmadi ◽  
Mohammad Barghamadi
Keyword(s):  
Carbonyl Compounds ◽  
High Yields ◽  
Aqueous Conditions ◽  
Selective Reagent ◽  
Quinolinium Fluorochromate

A variety of semicarbazones are transformed to their carbonyl compounds with quinolinium fluorochromate (QFC) in high yields under mild and non-aqueous conditions. Selective deprotection of semicarbazones and oximes in the presence of p-nitrophenylhydrazones or 2,4-dinitrophenylhydrazones is noteworthy advantage of this reagent.

Quinolinium Fluorochromate: An Efficient and Convenient Reagent for Oxidative Cleavage of Thioacetals to Their Parent Carbonyl Compounds.

ChemInform ◽  
2006 ◽  
Vol 37 (12) ◽  
Author(s):  
Mahmood Tajbakhsh ◽  
Kamal Alimohammadi ◽  
Farhad Ramzanian-Lehmali ◽  
Mohamad Barghamadi ◽  
Alireza Shakeri
Keyword(s):  
Carbonyl Compounds ◽  
Oxidative Cleavage ◽  
Quinolinium Fluorochromate

Quinolinium Fluorochromate: An Efficient and Convenient Reagent for Oxidative Cleavage of Thioacetals to Their Parent Carbonyl Compounds

2005 ◽  
Vol 180 (11) ◽  
pp. 2587-2591 ◽  
Author(s):  
Mahmood Tajbakhsh ◽  
Kamal Alimohammadi ◽  
Farhad Ramzanian-Lehmali ◽  
Mohamad Barghamadi ◽  
Alireza Shakeri
Keyword(s):  
Carbonyl Compounds ◽  
Oxidative Cleavage ◽  
Quinolinium Fluorochromate

Silicon Assisted Sulfuration: Tetrachlorosilane-Sodium Sulfide-A New Potent Thionating Reagent for Carbonyl Compounds

2007 ◽  
Author(s):  
T. A. Salama ◽  
S. S. Elmorsy ◽  
A. M. Khalil ◽  
M. A. Ismail ◽  
A. S. El-Ahl
Keyword(s):  
Carbonyl Compounds ◽  
Sodium Sulfide

THE INFLUENCE OF HAEMOGLOBIN-S AND G6PD DEFICIENCY ON THE ACTIVITY OF THE 17β-HYDROXYSTEROID DEHYDROGENASE OF INTACT HUMAN ERYTHROCYTES

1974 ◽  
Vol 75 (4) ◽  
pp. 793-800
Author(s):  
A. O. Sogbesan ◽  
O. A. Dada ◽  
B. Kwaku Adadevoh
Keyword(s):  
Enzyme Activity ◽  
Dehydrogenase Activity ◽  
Sex Steroids ◽  
G6pd Deficiency ◽  
Incubation Medium ◽  
Hydroxysteroid Dehydrogenase ◽  
G6pd Activity ◽  
Reverse Transformation ◽  
Oxidative Transformation ◽  
Haemoglobin S

ABSTRACT The 17β-hydroxysteroid dehydrogenase activity in intact erythrocytes of Nigerian patients, in particular with regard to haemoglobin genotypes and G6PD* activity was studied. The G6PD activity of the erythrocyte did not affect the oxidative transformation of testosterone to androstenedione and of oestradiol to oestrone. The reduction (reverse transformation) was inhibited in G6PD-deficient erythrocytes but this inhibition was offset by the addition of 0.025 m glucose to the incubation medium. The per cent oxidation transformation of testosterone was higher in Hb-AA than in Hb-SS erythrocytes. It is suggested that the differences may be a result of either lower enzyme activity in the Hb-SS erythrocytes or of differences in the uptake and possibly binding of sex steroids by intact Hb-SS and Hb-AA erythrocytes.

A FACILE SYNTHESIS AND REACTIONS OF AMINO SELENOLO[2,3-b]PYRIDINE CARBOXYLATE

2015 ◽  
Vol 12 (1) ◽  
pp. 3910-3918 ◽  
Author(s):  
Dr Remon M Zaki ◽  
Prof Adel M. Kamal El-Dean ◽  
Dr Nermin A Marzouk ◽  
Prof Jehan A Micky ◽  
Mrs Rasha H Ahmed
Keyword(s):  
Biological Activity ◽  
Carbonyl Compounds ◽  
Mass Spectra ◽  
The Other ◽  
Pyridine Derivatives ◽  
Facile Synthesis ◽  
High Biological Activity ◽  
Basic Hydrolysis ◽  
Pyridine Carboxylate ◽  
Hydrolysis Of

 Incorporating selenium metal bonded to the pyridine nucleus was achieved by the reaction of selenium metal with 2-chloropyridine carbonitrile 1 in the presence of sodium borohydride as reducing agent. The resulting non isolated selanyl sodium salt was subjected to react with various α-halogenated carbonyl compounds to afford the selenyl pyridine derivatives 3a-f  which compounds 3a-d underwent Thorpe-Ziegler cyclization to give 1-amino-2-substitutedselenolo[2,3-b]pyridine compounds 4a-d, while the other compounds 3e,f failed to be cyclized. Basic hydrolysis of amino selenolo[2,3-b]pyridine carboxylate 4a followed by decarboxylation furnished the corresponding amino selenolopyridine compound 6 which was used as a versatile precursor for synthesis of other heterocyclic compound 7-16. All the newly synthesized compounds were established by elemental and spectral analysis (IR, 1H NMR) in addition to mass spectra for some of them hoping these compounds afforded high biological activity.

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