395072-12-5Relevant academic research and scientific papers
An efficient and recyclable catalyst for the cleavage of tert-butyldiphenylsilyl ethers
Yan, Shiqiang,Ding, Ning,Zhang, Wei,Wang, Peng,Li, Yingxia,Li, Ming
, p. 6 - 20 (2012/07/13)
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.
Synthesis of 1,6-anhydro sugars catalyzed by silica supported perchloric acid
Chun, Yuexing,Yan, Shiqiang,Li, Xiangpeng,Ding, Ning,Zhang, Wei,Wang, Peng,Li, Ming,Li, Yingxia
scheme or table, p. 6196 - 6198 (2011/12/01)
A new and efficient method for the preparation of 1,6-anhydro sugars using silica supported perchloric acid as a catalyst is described. The catalyst is heterogeneous and 1,6-anhydro sugars could be formed within a few minutes with good yields.
A synthetic pentasaccharide with GTPase activity.
Solomon,Fridman,Zhang,Baasov
, p. 4311 - 4314 (2007/10/03)
The design, synthesis, and preliminary evaluation of the first example of synthetic pentasaccharide (1) that shows marked rate enhancement and specificity for the hydrolysis of GTP to GDP and orthophosphate (OP) are reported. At the concentration ratios of GTP/1 = 3.6 and GTP/Mg(2+) = 1 (pH 7.1, 50 degrees C), a rate enhancement of about 500-fold was obtained.[reaction: see text]
