Key Lab of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
Carbohydr Res. 2012 Jun 1;354:6-20. doi: 10.1016/j.carres.2012.02.021. Epub 2012 Mar 1.
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.
报道了一种在硅胶负载的三氟磺酸作用下,高效、选择性和环境友好的脱除叔丁基二苯基硅醚保护基的方法。在乙腈中,各种类型的其他保护基存在下,该非均相反应可以顺利地将来源于碳水化合物和皂苷残基的叔丁基二苯基硅醚以良好到优秀的产率脱去保护基。该反应不需要进行水相处理,并且负载型催化剂可以很容易地回收。