| Synthesis and photochemistry of 1-iodocyclohexene: influence of ultrasound on ionic vs. radical behaviour. | |
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MedLine Citation:
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PMID: 17846569 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Simultaneous application of UV light and ultrasonic irradiation to a reaction mixture containing 1-iodocyclohexene is reported. The irradiation of 1-iodocyclohexene in methanol was carried out with or without addition of zinc. The effect of ultrasound or mechanical stirring on this solid-liquid system was also compared. The irradiation of 1-iodocyclohexene in methanol in the presence of zinc increases the yield of the nucleophilic trapping product, compared with the yield after irradiation in the absence of zinc. The photodegradation of 1-iodocyclohexene was slightly accelerated after addition of zinc. A rapid formation of radical product was accompanied by substantial decrease of 1-iodocyclohexene after application of ultrasound and irradiation without the zinc. The ultrasound significantly affects the photobehaviour of this reaction, predominantly its radical route. The joint application of ultrasound and zinc contributes positively to the production of radical and ionic products. The sonochemical stirring is more effective than mechanical stirring. |
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Authors:
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Marika Blaskovicova; Anton Gaplovsky; Jaroslav Blasko |
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Publication Detail:
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Type: Comparative Study; Journal Article Date: 2007-02-16 |
Journal Detail:
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Title: Molecules (Basel, Switzerland) Volume: 12 ISSN: 1420-3049 ISO Abbreviation: Molecules Publication Date: 2007 |
Date Detail:
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Created Date: 2007-09-11 Completed Date: 2007-10-23 Revised Date: 2009-10-27 |
Medline Journal Info:
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Nlm Unique ID: 100964009 Medline TA: Molecules Country: Switzerland |
Other Details:
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Languages: eng Pagination: 188-93 Citation Subset: IM |
Affiliation:
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Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Mlynska dolina CH-2, SK-842 15, Bratislava, Slovakia. noskova@fns.uniba.sk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chromatography, Gas Cyclohexenes / chemical synthesis, chemistry* Free Radical Scavengers / pharmacology Iodine Compounds / chemical synthesis*, chemistry* Magnetic Resonance Spectroscopy Mechanics Methanol Molecular Structure Photochemistry* Sonication Ultrasonics* Ultraviolet Rays Zinc / pharmacology |
| Chemical | |
Reg. No./Substance:
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0/Cyclohexenes; 0/Free Radical Scavengers; 0/Iodine Compounds; 67-56-1/Methanol; 7440-66-6/Zinc |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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