Articles with "controlled selective" as a keyword



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Condition-controlled selective synthesis of hydroxyl(indolyl)- and bis(indolyl)barbiturates

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Published in 2017 at "Journal of the Iranian Chemical Society"

DOI: 10.1007/s13738-017-1075-3

Abstract: By combining the structural features of indole and barbituric acid, new hybrid molecules were designed and synthesized. Hydroxy(indolyl)barbiturates and bis(indolyl)barbiturates were selectively prepared via the reaction of indoles with alloxan derivatives in various conditions.Graphical Abstract read more here.

Keywords: bis indolyl; indolyl barbiturates; selective synthesis; controlled selective ... See more keywords
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Light-Controlled Selective Disruption, Multilevel Patterning, and Sequential Release with Polyelectrolyte Multilayer Films Incorporating Four Photocleavable Chromophores

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Published in 2017 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.6b05294

Abstract: We report photolabile polyelectrolyte multilayers (PEMs), produced by the layer-by-layer (LbL) approach, which comprise commercially available photoinert polyanions and photolabile polycations. Photochemical degradation of synthetic photolabile polycations renders these PEMs soluble in near neutral aqueous… read more here.

Keywords: selective disruption; polyelectrolyte; photolabile polycations; controlled selective ... See more keywords
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Redox Potential Controlled Selective Oxidation of Styrenes for Regio- and Stereoselective Crossed Intermolecular [2 + 2] Cycloaddition via Organophotoredox Catalysis.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c01852

Abstract: A redox potential controlled intermolecular [2 + 2] cross-cycloaddition has been developed in the presence of a thioxanthylium photoredox catalyst. Electron-rich styrenes such as β-bromostyrene (Ep/2 = +1.61 V vs SCE) were selectively oxidized by… read more here.

Keywords: cycloaddition; redox potential; selective oxidation; oxidation styrenes ... See more keywords
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A controlled selective synthesis of dihydropyrans through tandem reaction of alkynes with diazo compounds.

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Published in 2017 at "Chemical communications"

DOI: 10.1039/c7cc01616f

Abstract: We report here an effective protocol to prepare highly functionalized dihydropyrans via sequential reaction of cross-coupling-intramolecular Michael addition of functionalized terminal alkynes and diazo compounds under mild reaction conditions. Importantly, by choosing different ligands, the… read more here.

Keywords: selective synthesis; diazo compounds; synthesis dihydropyrans; alkynes diazo ... See more keywords
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Efficacy of pump-controlled selective antegrade cerebral perfusion in total arch replacement: A propensity-matched analysis

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Published in 2022 at "Frontiers in Surgery"

DOI: 10.3389/fsurg.2022.918461

Abstract: Background Pump-controlled selective antegrade cerebral perfusion (PC-SACP) in total arch replacement (TAR) can regulate cerebral flow accurately, which might be beneficial for cerebral protection. However, the safety of PC-SACP for TAR combined with frozen elephant… read more here.

Keywords: pump controlled; antegrade cerebral; group; perfusion ... See more keywords