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   Articles with "unsaturated aldehydes" as a keyword



Computational insight into asymmetric uranyl‐salophen coordinated with α, β‐unsaturated aldehydes and ketones

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recommendations! Published in 2018 at "Applied Organometallic Chemistry"

DOI: 10.1002/aoc.4137

Abstract: The study of the catalytic activity and activation mechanism of asymmetric uranyl-salophens with α, β-unsaturated aldehydes or α, β-unsaturated ketones, is a research hotspot. In this paper, the complexes of the uranyl–salophen(U-S) modified by unilateral… read more here.

Keywords: unsaturated aldehydes; asymmetric uranyl; aldehydes ketones; uranyl salophen ... See more keywords

CoOx@Co Nanoparticle‐based Catalyst for Efficient Selective Transfer Hydrogenation of α,β‐Unsaturated Aldehydes

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recommendations! Published in 2019 at "ChemCatChem"

DOI: 10.1002/cctc.201901996

Abstract: Currently, developing simple and effective catalysts for selective hydrogenation of α,β‐unsaturated aldehydes to unsaturated alcohols is challenging. Herein, an efficient CoOx‐shell/Co‐core structured nanoparticle catalyst is synthesized by a facile ultrasonic‐assisted carbothermal reduction method. The resultant… read more here.

Keywords: unsaturated aldehydes; selective transfer; hydrogenation; transfer hydrogenation ... See more keywords

α,β-UNSATURATED ALDEHYDES IN THE SYNTHESIS OF PYRROLES

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recommendations! Published in 2017 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/3715

Abstract: Обзор посвящен опубликованным за последние 10 лет методам синтеза пирролов на основе α,βнепредельных альдегидов. Основным подходом к синтезу этих гетероциклических систем являются многокомпонентные реакции. Участие алифатических, ароматических, α-разветвленных еналей в таких реакциях позволяет получать целевые… read more here.

Keywords: unsaturated aldehydes; chemistry; aldehydes synthesis; synthesis pyrroles ... See more keywords

α,β-Unsaturated Aldehyde-Induced Delays in Nucleotide Excision Repair and the Contribution of Reactive Oxygen Species.

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recommendations! Published in 2018 at "Chemical research in toxicology"

DOI: 10.1021/acs.chemrestox.7b00304

Abstract: Aldehydes are widespread environmental and industrial compounds to which humans are frequently exposed. Despite their significant health risk, the mechanisms underlying aldehyde toxicity are poorly understand. We recently demonstrated that cigarette sidestream smoke (CSS) inhibited… read more here.

Keywords: unsaturated aldehydes; reactive oxygen; nucleotide excision; oxygen species ... See more keywords
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Biotechnological Production and Sensory Evaluation of ω1-Unsaturated Aldehydes.

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recommendations! Published in 2020 at "Journal of agricultural and food chemistry"

DOI: 10.1021/acs.jafc.0c06872

Abstract: Lipid extracts of the fungus Flammulina velutipes were found to contain various scarce fatty acids including dodec-11-enoic acid and di- and tri-unsaturated C16 isomers. A biotechnological approach using a heterologously expressed carboxylic acid reductase was… read more here.

Keywords: unsaturated aldehydes; evaluation unsaturated; biotechnological production; acid ... See more keywords

Copper-Catalyzed Regioselective Iodoformylation of Terminal Alkynes to Access Versatile Electrophiles (E)-β-Iodo-α,β-Unsaturated Aldehydes.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02838

Abstract: Herein, we describe a method for synthesizing (E)-β-iodo-α,β-unsaturated aldehydes via the iodoformylation of terminal alkynes with TMSCF3 and NaI. This synthetic method uses inexpensive and easy-to-handle chemical feedstocks and employs a commercially available CuI catalyst.… read more here.

Keywords: iodo unsaturated; iodoformylation terminal; unsaturated aldehydes; terminal alkynes ... See more keywords

Biocatalytic Asymmetric Michael Additions of Nitromethane to α,β-Unsaturated Aldehydes via Enzyme-bound Iminium Ion Intermediates

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recommendations! Published in 2019 at "ACS Catalysis"

DOI: 10.1021/acscatal.9b00780

Abstract: The enzyme 4-oxalocrotonate tautomerase (4-OT) exploits an N-terminal proline as main catalytic residue to facilitate several promiscuous C–C bond-forming reactions via enzyme-bound enamine intermediates. Here we show that the active site of this enzyme can… read more here.

Keywords: unsaturated aldehydes; enzyme bound; enzyme; asymmetric michael ... See more keywords

Thermoregulated phase-separable rhodium nanoparticle catalyst for selective hydrogenation of α,β-unsaturated aldehydes and ketones

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recommendations! Published in 2017 at "RSC Advances"

DOI: 10.1039/c7ra10351d

Abstract: Thermoregulated phase-separable Rh nanoparticles (abbreviated as TPS-Rhnano) were found to be efficient catalysts for selective hydrogenation of CC bonds in α,β-unsaturated aldehydes and ketones with a selectivity of >99% at >99% conversion. More importantly, the… read more here.

Keywords: unsaturated aldehydes; phase; thermoregulated phase; selective hydrogenation ... See more keywords
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Cu2O-catalyzed selective 1,2-addition of acetonitrile to α,β-unsaturated aldehydes

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recommendations! Published in 2020 at "Organic chemistry frontiers"

DOI: 10.1039/d0qo00024h

Abstract: A cyanomethylation of α,β-unsaturated aldehydes with acetonitrile as a nucleophile is disclosed. The reaction is promoted with Cu2O as an inexpensive catalyst. Mild conditions are used, and the reaction completes within a few minutes. Through… read more here.

Keywords: unsaturated aldehydes; acetonitrile unsaturated; catalyzed selective; addition acetonitrile ... See more keywords

Semi-hydrogenation of α,β-unsaturated aldehydes over sandwich-structured nanocatalysts prepared by phase transformation of thin-film Al2O3 to Al-TCPP.

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recommendations! Published in 2022 at "Nanoscale"

DOI: 10.1039/d2nr04474a

Abstract: The semi-hydrogenation of α,β-unsaturated aldehydes to the desired unsaturated alcohols with both high conversion and high selectivity remains a big challenge. Herein, we designed a sandwich-structured nanocatalyst for the highly selective hydrogenation of various α,β-unsaturated… read more here.

Keywords: sandwich structured; hydrogenation; unsaturated aldehydes; phase transformation ... See more keywords

Ambient-pressure selective hydrogenation of unsaturated aldehydes and ketones into unsaturated alcohols in the water phase.

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recommendations! Published in 2025 at "Dalton transactions"

DOI: 10.1039/d4dt03338h

Abstract: A universal and green catalytic system for the hydrogenation of unsaturated aldehydes and ketones into the corresponding alcohols with the CC bonds retained under atmospheric hydrogen pressure in the water phase was realized by N-functionalized… read more here.

Keywords: pressure; hydrogenation unsaturated; unsaturated aldehydes; aldehydes ketones ... See more keywords