离子液体中的光化学席曼反应。
Photochemical Schiemann Reaction in Ionic Liquids.
作者信息
Heredia-Moya Jorge, Kirk Kenneth L
机构信息
Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda MD 20892.
出版信息
J Fluor Chem. 2007 Jun;128(6):674-678. doi: 10.1016/j.jfluchem.2007.03.012.
Abstract
Photochemical Schiemann reactions of imidazole derivatives 1 and 4 were carried out in 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid [bmim][BF(4)] as solvent. The effects of temperature, co-solvent and wavelength on the rate of the reaction and product yield were examined. The use of ionic liquid increases the yield of the photochemical fluorodediazoniation reaction of 2 at 0°C. Careful temperature control is necessary to minimize the photodecomposition of the ionic liquid in order to increase the yield of product.
摘要
在1-丁基-3-甲基咪唑四氟硼酸盐离子液体[bmim][BF₄]作为溶剂的条件下，进行了咪唑衍生物1和4的光化学席曼反应。研究了温度、共溶剂和波长对反应速率和产物产率的影响。离子液体的使用提高了2在0°C下光化学氟代重氮分解反应的产率。为了提高产物产率，需要仔细控制温度以尽量减少离子液体的光分解。
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