📜在 氯化铵,锌体系中,用 乙腈 用作溶剂,化学反应 0.08H,反应生成(2S,3S,4R,5R)-3,4,5-Tris(Benzyloxy)Tetrahydro-2H-Pyran-2-Ol,2,3,4-三-邻苯甲基-~-D-阿拉伯呱喃糖
参考文献:A Highly Efficient Deprotection Of The 2,2,2-Trichloroethyl Group At The Anomeric Oxygen Of Carbohydrates
标题:A Highly Efficient Deprotection Of The 2,2,2-Trichloroethyl Group At The Anomeric Oxygen Of Carbohydrates
摘要:Commercially Available Zinc Dust In The Presence Of Ammonium Chloride In Acetonitrile At Reflux Removes The 2,2,2-Trichloroethyl (Ice) Group At Anomeric Centers With Excellent Yields (>95%) In Short Reaction Times. This Present Method Is Easily Implemented On Substrates Containing Acyl And Benzyl Groups And Large-Scale Reactions Also Proceed In High Yield. (C) 2011 Elsevier Ltd. All Rights Reserved.
Doi:10.1016/j.Carres.2011.08.007