Results 71 to 80 of about 60,877 (255)

Gas chromatographic column enables analysis of propellant hydrazines [PDF]

open access: yes, 1966
Stainless steel column is used in gas chromatographic analysis of propellant-grade hydrazine.
Welz, E. A., Jr.
core   +1 more source

Selective NaOH-catalysed hydration of aromatic nitriles to amides [PDF]

open access: yes, 2015
The authors gratefully acknowledge the Royal Society (University Research Fellowship to CSJC)The selective synthesis of aromatic and heteroaromatic amides through base-catalysed hydration of nitriles was achieved using inexpensive and commercially ...
Cazin, Catherine S.J.   +6 more
core   +2 more sources

The 15N-enrichment in dark clouds and Solar System objects

open access: yes, 2013
The line intensities of the fundamental rotational transitions of H13CN and HC15N were observed towards two prestellar cores, L183 and L1544, and lead to molecular isotopic ratios 140 6 14N/15N 6 250 and 140 6 14N/15N 6 360, respectively.
Bonal, Lydie   +3 more
core   +2 more sources

In situ supported rhodium catalyst on mesoporous silica for chemoselective hydrogenation of nitriles to primary amines

open access: yesGreen Processing and Synthesis
Rhinsitu/mesSiO2 was prepared in one step by incorporating rhodium units onto the silica during the sol–gel process. It was revealed as an excellent active and selective catalyst for the hydrogenation of aromatic, heteroaromatic, aliphatic nitriles, and ...
Ajjou Abdelaziz Nait   +2 more
doaj   +1 more source

Sulfur-promoted, one-pot, and metal-free conversion of aromatic aldehydes to nitriles using an inorganic ammonium salt as the nitrogen source

open access: yesGreen Synthesis and Catalysis, 2023
A simple protocol for the sulfur-promoted conversion of aromatic aldehydes to aromatic nitriles has been developed. This strategy enables the one-pot conversion of inexpensive and readily available aromatic aldehydes into highly valuable aromatic ...
Jiawen Yin   +4 more
doaj  

Whole Cell Actinobacteria as Biocatalysts

open access: yesFrontiers in Microbiology, 2019
Production of fuels, therapeutic drugs, chemicals, and biomaterials using sustainable biological processes have received renewed attention due to increasing environmental concerns.
Yitayal Shiferaw Anteneh   +2 more
doaj   +1 more source

Ahmad-Strong synthesis of 8-, 9-, and 10-pentadecynoic acids

open access: yesJournal of Lipid Research, 1969
Three pentadecynoic acids, with the triple bond in the 8-, 9-, and 10-positions, have been synthesized on a gram scale in over-all yield of 65% by refinements of the five-step Ahmad-Strong method; isolation of intermediates was shown to be unnecessary ...
David R. Howton, Robert A. Stein
doaj  

Bunias erucago L.: Glucosinolate Profile and In Vitro Biological Potential

open access: yesMolecules, 2019
Bunias erucago belongs to the Brassicaceae family, which represents a forgotten crop of the Euro-Mediterranean area. The aim of the present study was to determine the glucosinolate profile in different plant parts and biological properties (antioxidant ...
Ivica Blažević   +6 more
doaj   +1 more source

Analyzing the Catalytic Mechanism of the Fe-Type Nitrile Hydratase from \u3cem\u3eComamonas testosteroni\u3c/em\u3e Ni1 [PDF]

open access: yes, 2008
In order to gain insight into the catalytic mechanism of Fe-type nitrile hydratases (NHase), the pH and temperature dependence of the kinetic parameters kcat, Km, and kcat/Km along with the solvent isotope effect were examined for the Fe-type NHase from ...
Holz, Richard C., Rao, Saroja
core   +1 more source

Influence of pH and type of myrosinase complex on the products obtained in the myrosinase catalysed hydrolysis of glucosinolates – a MECC study [PDF]

open access: yes, 2007
Environmental conditions, e.g. pH and the presence of Fe2+ are well known factors that influence the product profile of the myrosinase catalysed hydrolysis of glucosinolates.
Bellostas, Natalia   +2 more
core  

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