Blaskovicova Marika, Gaplovsky Anton, Blasko Jaroslav
Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Mlynska dolina CH-2, SK-842 15, Bratislava, Slovakia.
Molecules. 2007 Feb 16;12(2):188-93. doi: 10.3390/12020188.
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.
据报道，将紫外光和超声辐射同时应用于含有1-碘环己烯的反应混合物中。在添加或不添加锌的情况下，对甲醇中的1-碘环己烯进行辐射。还比较了超声或机械搅拌对该固液体系的影响。与在无锌条件下辐射后的产率相比，在锌存在下甲醇中1-碘环己烯的辐射提高了亲核捕获产物的产率。添加锌后，1-碘环己烯的光降解略有加速。在施加超声且无锌辐射后，自由基产物迅速形成，同时1-碘环己烯大量减少。超声显著影响该反应的光行为，主要是其自由基途径。超声和锌的联合应用对自由基和离子产物的生成有积极作用。超声化学搅拌比机械搅拌更有效。
