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Phosphotungstic acid on silica with modified acid sites as a solid catalyst for selective cleavage of tert-butyldimethylsilyl ethers

Paper ID Volume ID Publish Year Pages File Format Full-Text
51965 46860 2008 6 PDF Available
Title
Phosphotungstic acid on silica with modified acid sites as a solid catalyst for selective cleavage of tert-butyldimethylsilyl ethers
Abstract

The strength and nature of acid sites of bulk phosphotungstic acid could be modified after dispersing it on silica support which was characterized by XRD, ammonia TPD and 31P MAS NMR techniques. This solid acid catalyst was found to be highly selective for the cleavage of tert-butyldimethylsilyl ethers at room temperature. The catalyst was easily recovered by filtration and could be reused for several times without loss of any activity giving a TON of 9.5 × 105.

Keywords
Solid acid; Ammonia TPD; XRD; Catalytic cleavage; tert-Butyldimethylsilyl ethers; Reaction pathway
First Page Preview
Phosphotungstic acid on silica with modified acid sites as a solid catalyst for selective cleavage of tert-butyldimethylsilyl ethers
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 9, 15 May 2008, Pages 1863–1868
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis