Results 21 to 30 of about 60,817 (284)

Progress of Enantioselective Nitrile Biotransformations in Organic Synthesis

CHIMIA, 2009
Recent progress of enantioselective biotransformations of nitriles including various functionalized nitriles, ?-hydroxy and ?-amino nitriles, oxirane- and aziridine-containing carbonitriles is summarized in this short review article.
Mei-Xiang Wang
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NaY Zeolite: A Useful Catalyst for Nitrile Hydrolysis

Molecules, 2000
The NaY zeolite catalysed hydrolysis of nitriles to primary amides is reported. It is found that aryl nitriles with strong electron-withdrawing substituents and cyanopyridines are readily hydrolysed in the water suspension, while aliphatic nitriles do ...
Bogdan A. Å olaja, Borivoje Adnađević, Dejan M. Opsenica, Dragana R. Milić   +3 more
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Composés d'addition des halogénures de niobium(V) et de tantale(V): II. Stabilité relative des composés des chlorures avec quelques éthers, sulfures et nitriles

CHIMIA, 1971
New NMR methods for the determination of relative stability constants are developed. These methods are used for the study of niobium(V) and tantalum(V) chlorides adducts with series of ethers, sulfides, and nitriles. The relative stabilities of nitriles
A. Merbach, J.-C. Bünzli
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Nitrile Synthesis with Aldoxime Dehydratases: A Biocatalytic Platform with Applications in Asymmetric Synthesis, Bulk Chemicals, and Biorefineries

Molecules, 2021
Nitriles comprise a broad group of chemicals that are currently being industrially produced and used in fine chemicals and pharmaceuticals, as well as in bulk applications, polymer chemistry, solvents, etc. Aldoxime dehydratases catalyze the cyanide-free
Pablo Domínguez de María
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Supported Palladium Nanoparticles Catalyzed Intermolecular Carbopalladation of Nitriles and Organoboron Compounds

Frontiers in Chemistry, 2022
The first heterogeneous catalyzed example for the direct synthesis of aromatic ketones via intermolecular carbopalladation of aliphatic nitriles and organoboron compounds was developed.
Xin Liu, Dan Liu, Tegshi Muschin, Agula Bao, Chaolumen Bai, Yong-Sheng Bao   +5 more
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Cross-Cyclotrimerization with Two Nitriles as a Synthetic Pathway to Unsymmetrically 3,3’-Disubstituted bis(Tetrahydroisoquinolines)

Molecules, 2009
Microwave assisted CpCo(CO)2 catalyzed cross-cyclotrimerizations of 1,7,9,15-hexadecatetrayne with two different nitriles to give unsymmetrically substituted bis(tetrahydroisoquinolines) was studied.
Aneta Kadlčíková, Martin Kotora
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Multiple Pathways in Cp₂TiCl₂—Catalyzed Reaction of Tetraalkyl-Substituted Pyrazines with EtAlCl₂ and Mg

Chemistry Proceedings, 2022
There exist a number of classical methods for the synthesis of substituted pyrazines. Among this variety of reactions, the synthesis of substituted pyrazines from nitriles does not stand out in either the number of known examples or in product yield ...
Mariya G. Shaibakova, Nikita A. Rikhter, Leisan K. Dilmukhametova, Ilfir R. Ramazanov   +3 more
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Reductive cyanation of organic chlorides using CO2 and NH3 via Triphos–Ni(I) species

Nature Communications, 2020
Nitriles are key intermediates in production of pharmaceuticals, agrochemicals and organic materials. Here, the authors report a nickel-catalyzed reductive cyanation of organic chlorides with CO2/NH3 and urea as cyanation reagents to afford a broad range
Yanan Dong, Peiju Yang, Shizhen Zhao, Yuehui Li   +3 more
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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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