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

TitlePhosphotungstic acid on silica with modified acid sites as a solid catalyst for selective cleavage of tert-butyldimethylsilyl ethers
Publication TypeJournal Article
Year of Publication2008
AuthorsBhure, MH, Kumar, I, Natu, AD, Chikate, RC, Rode, CV
JournalCatalysis Communications
Volume9
Issue9
Pagination1863-1868
Date PublishedMAY
ISSN1566-7367
KeywordsAmmonia TPD, Catalytic cleavage, reaction pathway, solid acid, tert-butyldimethylsilyl ethers, XRD
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 (31)P 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 x 10(5). (C) 2008 Elsevier B.V. All rights reserved.

DOI10.1016/j.catcom.2008.03.017
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)2.827
Divison category: 
Chemical Engineering & Process Development