期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 140, 期 -, 页码 121-126出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2012.05.016
关键词
Fluorous silica gel; Bis(perfluorooctanesulfonyl)imide; Protection of carbonyls
The immobilization of bis(perfluorooctanesulfonyl)imide (HNPf(2)) on fluorous silica gel (FSG) and its utilization in protection of carbonyls have been investigated. This system is reasonably general and can be applied to converting several carbonyls to the corresponding acetals and ketals in good to excellent yields. There is no need for the use of anhydrous solvents or inert atmosphere. Recycling studies have shown that the FSG-supported HNPf(2) catalyst can be readily recovered and reused several times without significant loss of activity. (C) 2012 Elsevier B.V. All rights reserved.
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