Journal of Molecular Catalysis A: Chemical

Introduction of N-sulfonic acid poly (4-vinylpyridinum) chloride as an efficient and reusable catalyst for the chemoselective 1, 1-diacetate protection and deprotection of …

F Shirini, OG Jolodar

文献索引：Shirini, Farhad; Jolodar, Omid Goli Journal of Molecular Catalysis A: Chemical, 2012 , vol. 356, p. 61 - 69

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被引用次数: 28

摘要

N-sulfonic acid poly (4-vinylpyridinium) chloride is easily prepared by the reaction of poly (4- vinylpyridine) with neat chlorosulfonic acid. This reagent can be used as an efficient catalyst for the preparation of 1, 1-diacetates at room temperature and neat condition. Deprotection of the resulting 1, 1-diacetates can also be achieved using the same catalyst in methanol. This new method consistently has the advantages of excellent yields and short reaction ...