About: Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45

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About: Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We prepared a series of porphyrin-based catalysts mimicking cytochrome P-450 potentially resistant to deactivation by varying the central metal ion, porphyrin ring substitution, and catalyst support. The influence of the nature of a solid support, the type of central cation and the chemical modification of the porphyrin ring on the catalytic efficiency was studied. The oxygenation ability of the synthesized catalysts was tested using 1-hexene as a substrate and tert-butyl hydroperoxide as an oxidant under various reaction conditions. Identification of the oxygenation products was performed with gas chromatography-mass-spectrometry (GC-MS). It was found that the application of low GC injection temperature (150 °C) was necessary to detect primary products of the oxygenation (peroxo alkenes), from which secondary oxygenation products, mainly epoxides, alcohols, aldehydes and ketones, were formed slowly. The efficiency of the individual catalysts depended on their structure and varied significantly. We prepared a series of porphyrin-based catalysts mimicking cytochrome P-450 potentially resistant to deactivation by varying the central metal ion, porphyrin ring substitution, and catalyst support. The influence of the nature of a solid support, the type of central cation and the chemical modification of the porphyrin ring on the catalytic efficiency was studied. The oxygenation ability of the synthesized catalysts was tested using 1-hexene as a substrate and tert-butyl hydroperoxide as an oxidant under various reaction conditions. Identification of the oxygenation products was performed with gas chromatography-mass-spectrometry (GC-MS). It was found that the application of low GC injection temperature (150 °C) was necessary to detect primary products of the oxygenation (peroxo alkenes), from which secondary oxygenation products, mainly epoxides, alcohols, aldehydes and ketones, were formed slowly. The efficiency of the individual catalysts depended on their structure and varied significantly. (en)
Title	Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 (en)
skos:prefLabel	Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 (en)
skos:notation	RIV/60461373:22340/11:43891674!RIV12-MSM-22340___
http://linked.open...avai/predkladatel	Fakulta chemicko-inženýrská
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6046137307)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Král, Vladimír Sýkora, David Zachař, Pavel Petkova, Galina
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	228695
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/11:43891674
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Product distribution; Metalloporphyrin; Oxygenation; Enzyme mimicking; Cytochrome P-450; Porphyrinoids; Oxygenations; Cytochromes (en)
http://linked.open.../riv/klicoveSlovo	Cytochrome P-450 Cytochromes Enzyme mimicking Metalloporphyrin Oxygenations Porphyrinoids Product distribution Oxygenation
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[771DDD28F332]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	76
http://linked.open...iv/tvurceVysledku	Král, Vladimír Sýkora, David Petkova, Galina Zachař, Pavel
http://linked.open...ain/vavai/riv/wos	000298004400001
http://linked.open...n/vavai/riv/zamer	Physico-chemical methods of analysis and characterization of chemical systems and biosystems
issn	0010-0765
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1135/cccc2010138
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45 Selective oxygenation of alfa-olefins by means of metalloporphyrin catalysts mimicking cytochrome P-45

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