Proportion of Hexanal to Total Carbonyl Compounds in Soybean Extracts

1995 ◽  
Vol 59 (4) ◽  
pp. 723-724 ◽  
Author(s):  
Natsuko Yukawa ◽  
Hitoshi Takamura ◽  
Keisuke Kitamura ◽  
Teruyoshi Matoba
Keyword(s):  
Carbonyl Compounds ◽  
Total Carbonyl

Determination of total carbonyl compounds in aqueous media

1993 ◽  
Vol 70 (9) ◽  
pp. 881-884 ◽  
Author(s):  
Natsuko Yukawa ◽  
Hitoshi Takamura ◽  
Teruyoshi Matoba
Keyword(s):  
Carbonyl Compounds ◽  
Aqueous Media ◽  
Total Carbonyl

scholarly journals Estimation of Total Carbonyl Compounds in Roasted and Dried Foods by the Tentative Method Using 1-Butanol as a Solvent

2009 ◽  
Vol 58 (1) ◽  
pp. 23-25 ◽  
Author(s):  
Riichiro Usuki ◽  
Yuriko Shibata ◽  
Misako Tagiri-Endo ◽  
Yasushi Endo
Keyword(s):  
Carbonyl Compounds ◽  
Tentative Method ◽  
Total Carbonyl ◽  
Dried Foods

scholarly journals A Modified Method to Estimate Total Carbonyl Compounds in Frying Oils Using 1-Butanol as a Solvent

2003 ◽  
Vol 52 (7) ◽  
pp. 353-358 ◽  
Author(s):  
Yasushi ENDO ◽  
Makoto TOMINAGA ◽  
Misako TAGIRI-ENDO ◽  
Kazuo KUMOZAKI ◽  
Hiroyuki KOUZUI ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Frying Oils ◽  
Total Carbonyl ◽  
Modified Method

A modified method for the estimation of total carbonyl compounds in heated and frying oils using 2-propanol as a solvent

2001 ◽  
Vol 78 (10) ◽  
pp. 1021-1024 ◽  
Author(s):  
Yasushi Endo ◽  
Chang Mo Li ◽  
Misako Tagiri-Endo ◽  
Kenshiro Fujimoto
Keyword(s):  
Carbonyl Compounds ◽  
Frying Oils ◽  
Total Carbonyl ◽  
Modified Method

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

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.

Directed, Palladium(II)-Catalyzed Enantioselective anti-Carboboration of Alkenyl Carbonyl Compounds

2019 ◽  
Author(s):  
Zhen Liu ◽  
Xiaohan Li ◽  
Tian Zeng ◽  
Keary Engle
Keyword(s):  
Carbonyl Compounds ◽  
Building Blocks ◽  
New Method ◽  
Carbon Based

A substrate-directed enantioselective <i>anti</i>-carboboration reaction of alkenes has been developed, wherein a carbon based nucleophile and a boron moiety are installed across the C=C bond through a 5- or 6-membered palladacycle intermediate. The reaction is promoted by a palladium(II) catalyst and a mondentate oxzazoline ligand. A range of enantioenriched secondary alkylboronate products were obtained with moderate to high enantioselectivity that could be further upgraded by recrystallization. This work represents a new method to synthesize versatile and valuable alkylboronate building blocks. Building on an earlier mechanistic proposal by Peng, He, and Chen, a revised model is proposed to account for the stereoconvergent nature of this transformation.

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