Results 21 to 30 of about 15,386 (167)

Revealing the Ion Chemistry Occurring in High Kinetic Energy-Ion Mobility Spectrometry: A Proof of Principle Study

Analytica, 2023
Here, we present proof of principle studies to demonstrate how the product ions associated with the ion mobility peaks obtained from a High Kinetic Energy-Ion Mobility Spectrometer (HiKE-IMS) measurement of a volatile can be identified using a Proton ...
Florentin Weiss, Christoph Schaefer, Stefan Zimmermann, Tilmann D. Märk, Chris A. Mayhew   +4 more
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Ahmad-Strong synthesis of 8-, 9-, and 10-pentadecynoic acids

Journal 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
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Exploring Supramolecular Assembly Space of Cationic 1,2,4-Selenodiazoles: Effect of the Substituent at the Carbon Atom and Anions

Molecules, 2022
Chalcogenodiazoles have been intensively studied in recent years in the context of their supramolecular chemistry. In contrast, the newly discovered cationic 1,2,4-selenodiazole supramolecular building blocks, which can be obtained via coupling between 2-
Mariya V. Grudova, Alexey S. Kubasov, Victor N. Khrustalev, Alexander S. Novikov, Andreii S. Kritchenkov, Valentine G. Nenajdenko, Alexander V. Borisov, Alexander G. Tskhovrebov   +7 more
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Simple synthesis of pyrrolo[3,2-e]indole-1-carbonitriles

Beilstein Journal of Organic Chemistry, 2013
Alkylation of 5-nitroindol-4-ylacetonitriles with ethyl chloroacetate, α-halomethyl ketones, and chloroacetonitrile followed by a treatment of the products with chlorotrimethylsilane in the presence of DBU gives 1-cyanopyrrolo[3,2-e]indoles substituted ...
Adam Trawczyński, Robert Bujok, Zbigniew Wróbel, Krzysztof Wojciechowski   +3 more
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Recent advances and perspectives in ruthenium-catalyzed cyanation reactions

Beilstein Journal of Organic Chemistry, 2022
The cyanation reaction has achieved rapid progress in recent times. The ability to exhibit multiple oxidation states increased the demand of ruthenium in the field of catalysis.
Thaipparambil Aneeja, Cheriya Mukkolakkal Abdulla Afsina, Padinjare Veetil Saranya, Gopinathan Anilkumar   +3 more
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Enable biomass-derived alcohols mediated alkylation and transfer hydrogenation

Nature Communications
A single-atom catalyst with generally regarded inert Zn–N4 motifs derived from ZIF-8 is unexpectedly efficient for the activation of alcohols, enabling alcohol-mediated alkylation and transfer hydrogenation. C-alkylation of nitriles, ketones, alcohols, N-
Xixi Liu, Liang Huang, Yuandie Ma, Guoqiang She, Peng Zhou, Liangfang Zhu, Zehui Zhang   +6 more
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Conversion of Natural Aldehydes from Eucalyptus citriodora, Cymbopogon citratus, and Lippia multiflora into Oximes: GC-MS and FT-IR Analysis †

Molecules, 2009
Three carbonyl-containing extracts of essential oils from Eucalyptus citriodora (Myrtaceae), Cymbopogon citratus (Gramineae) and Lippia multiflora (Verbenaceae) were used for the preparation of oximes.
Igor W. Ouédraogo, Michael Boulvin, Robert Flammang, Pascal Gerbaux, Yvonne L. Bonzi-Coulibaly   +4 more
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An unprecedented palladium-arsenic catalytic cycle for nitriles hydration

Frontiers in Chemistry, 2023
An unprecedented palladium/arsenic-based catalytic cycle for the hydration of nitriles to the corresponding amides is here described. It occurs in exceptionally mild conditions such as neutral pH and moderate temperature (60°C).
Damiano Cirri, Tiziano Marzo, Alessandro Pratesi   +2 more
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Reaction between Indazole and Pd-Bound Isocyanides—A Theoretical Mechanistic Study

Molecules, 2018
The mechanism of the addition of indazole (Ind)—a bifunctional aromatic N,NH-nucleophile—to cyclohexyl isocyanide coordinated to the palladium(II) center in the model complex cis-[PdCl2(CNMe)(CNCy)] (1) to give the corresponding aminocarbene ...
Girolamo Casella, Maurizio Casarin, Vadim Yu. Kukushkin, Maxim L. Kuznetsov   +3 more
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Synthetic Applications of the Parkins Nitrile Hydration Catalyst [PtH{(PMe2O)2H}(PMe2OH)]: A Review

Applied Sciences, 2015
The air-stable hydride-platinum(II) complex [PtH{(PMe2O)2H}(PMe2OH)], reported by Parkins and co-workers in 1995, is the most versatile catalyst currently available for the hydration of C≡N bonds.
Victorio Cadierno
doaj   +1 more source