An efficient and recyclable catalyst for the cleavage of tert-butyldiphenylsilyl ethers
                                
                                    
                                        作者:Shiqiang Yan、Ning Ding、Wei Zhang、Peng Wang、Yingxia Li、Ming Li                                    
                                    
                                        DOI:10.1016/j.carres.2012.02.021
                                    
                                    
                                        日期:2012.6
                                    
                                    An efficient, chemoselective, and environment-friendly method for the deprotection of tert-butyldiphenylsilyl ethers mediated by triflic acid supported on silica gel is reported. A wide range of tert-butyldiphenylsilyl ethers derived from carbohydrate and saponin residues can be smoothly cleaved in the presence of various types of other protecting groups in good to excellent yields in acetonitrile. This heterogeneous reaction does not require aqueous workup, and the supported catalyst can be readily recycled. (C) 2012 Elsevier Ltd. All rights reserved.