Results 21 to 30 of about 22,451 (231)

Theoretical and experimental study of the vibrational spectra of 1.5-dimethylcytosine [PDF]

, 2008
The Raman spectra of the solid 1,5-dimethylcytosine and the FTIR spectra at room and low temperatures respectively have been registered. Quantum mechanical calculations of energies, geometries and vibrational wavenumbers were carried out by using ab ...
Ben Altabef, Aida, Benzal, María Graciela, Brandán, S.A., García Ramos, J.V., Otero, J.C.   +4 more
core   +1 more source

A cost-effective and green aqueous synthesis of 3-substituted coumarins catalyzed by potassium phthalimide

Bulletin of the Chemical Society of Ethiopia, 2015
An efficient procedure for the synthesis of various 2-imino-2H-chromene-3-carbonitriles, 2-oxo-2H-chromene-3-carbonitriles as well as 2-oxo-2H-chromene-3-carboxylic acids is reported.
H. Kiyani, M. D. Daroonkala
doaj   +1 more source

Development of Hydrolysis and Defatting Processes for Production of Lowered Fishy Odor Hydrolyzed Collagen from Fatty Skin of Sockeye Salmon (Oncorhynchus nerka)

Foods, 2021
Lipid oxidation has a negative impact on application and stability of hydrolyzed collagen (HC) powder from fatty fish skin. This study aimed to produce fat-free HC powder from salmon skin via optimization of one-step hydrolysis using mixed proteases ...
Krisana Nilsuwan, Kasidate Chantakun, Lalita Chotphruethipong, Soottawat Benjakul   +3 more
doaj   +1 more source

Synthesis and viscosity behavior of poly(γ-p-biphenylmethyl-L-glutamate) in benzene/dichloroacetic acid mixtures, a comparison with poly(γ-benzyl-L-glutamate) [PDF]

, 1974
The synthesis of poly(γ-p-biphenylmethyl-L-glutamate), PBPLG, (poly{L-imino-1-[2-(4-biphenylylmethoxycarbonyl)ethyl]-2-oxoethylene}), (1d) is described. The viscosity behavior of this polymer in benzene/dichloroacetic acid mixtures (c=0,2.10 -3 - 1,4.10 -
Bantjes, Adriaan, Feijen, Jan, Groot, Klaas de, Sederel, Wim L., Visser, Anthonie C. de   +4 more
core   +3 more sources

Synthesis, Characterization and Biological Evaluation of 1, 2-Disubstituted Benzimidazole Derivatives using Mannich Bases

E-Journal of Chemistry, 2010
The ring system in which a benzene ring is fused to the 4,5-positions of imidazole is designated as benzimidazole. Condensations of 2-substituted benzimidazole derivatives were synthesized by different carboxylic acids using Mannich base and anti ...
B. Anil Reddy
doaj   +1 more source

Reactive Oxygen Species Differentially Modulate the Metabolic and Transcriptomic Response of Endothelial Cells

Antioxidants, 2022
Reactive oxygen species (ROS) are important mediators of both physiological and pathophysiological signal transduction in the cardiovascular system.
Niklas Müller, Timothy Warwick, Kurt Noack, Pedro Felipe Malacarne, Arthur J. L. Cooper, Norbert Weissmann, Katrin Schröder, Ralf P. Brandes, Flávia Rezende   +8 more
doaj   +1 more source

Enantioselective synthesis of non-proteinogenic 2-arylallyl-α-amino acids via Pd/In catalytic cascades [PDF]

, 2006
An efficient synthesis of both R- and S-enantiomers of 2-arylallyl-α-amino acids via a diastereoselective Pd/In mediated catalytic allylation of chiral N-sulfinyl-α-imino esters is described.
Anwar, Anwar, Cleghorn, Cleghorn, Colin Kilner, Colin W.G. Fishwick, Cooper, Cooper, Cooper, Davis, Ellman, Ellman, Evans, Grigg, Grigg, Hodgson, Hohsaka, John Blacker, Kevin Bailey, Najera, Ronald Grigg, Shaun McCaffrey, Stewart Korn, Visuvanathar Sridharan   +23 more
core   +1 more source

Addition of Di(trimethylsilyl) Phosphite to Schiff Bases of 2,5-Diformylfuran [PDF]

, 2011
A series of 2,5-Furanyl-bis-(aminomethylphosphonic Acids) has been synthesized by the addition of di(trimethylsilyl) phosphite to azomethine bond of achiral Schiff bases derved from 2,5-diformylfuran.
Ciechańska, Magdalena, Dzięgielewski, Marek, Lewkowski, Jarosław, Szcześniak, Aleksandra   +3 more
core   +1 more source

The characterization of acid and pepsin soluble collagen from ovine bones (Ujumuqin sheep)

Journal of Integrative Agriculture, 2018
Ovine bones are the major by-products after slaughtered. The present study was conducted to extract and characterize acid soluble collagens (ASC) and pepsin soluble collagens (PSC) from ovine bones (Ujumuqin sheep).
Ling-ling GAO, Zhen-yu WANG, Zheng LI, Cai-xia ZHANG, De-quan ZHANG   +4 more
doaj   +1 more source

Iron-Catalyzed, Highly Regioselective Synthesis of alpha-Aryl Carboxylic Acids from Styrene Derivatives and CO2 [PDF]

, 2012
The iron-catalyzed hydrocarboxylation of aryl alkenes has been developed using a highly active bench-stable iron(II) precatalyst to give alpha-aryl carboxylic acids in excellent yields and with near-perfect regioselectivity. Using just 1 mol % FeCl2, bis(
Greenhalgh, Mark D., Thomas, Stephen P.
core   +1 more source