Copper(II) Triflate: A Versatile Catalyst for the One-Pot Preparation of Orthogonally Protected Glycosides

被引:44
作者
Anh-Tuan Tran [1 ]
Jones, Rachel A. [1 ]
Pastor, Julien [1 ]
Boisson, Julien [1 ]
Smith, Nichola [2 ]
Galan, M. Carmen [1 ]
机构
[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
[2] Novartis Horsham Res Ctr, Novartis Inst Biomol Res, Horsham RH12 5AB, W Sussex, England
基金
英国工程与自然科学研究理事会;
关键词
carbohydrates; catalysis; copper(II) triflate; oligosaccharide synthesis; one-pot procedure; OLIGOSACCHARIDE SYNTHESIS; REGIOSELECTIVE PROTECTION; ACETALATION-ACETYLATION; SUGAR-DERIVATIVES; ORGANIC-SYNTHESIS; EFFICIENT; GLYCOSYLATION; MONOSACCHARIDES; THIOGLYCOSIDES; GLYCOPROTEIN;
D O I
10.1002/adsc.201100228
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The development of general and expedient methodologies for the preparation of orthogonally protected glycoside building blocks is essential for the efficient synthesis of complex oligosaccharides. Herein, we describe a new approach that uses copper(II) triflate as a versatile catalyst for the one-pot preparation of orthogonal protected thio- and O-glycosides from the corresponding unprotected counterparts. The conditions are mild, easy to handle and applicable to two and three one-pot tandem transformations, which include arylidene acetalation, esterification, regioselective reductive acetal ring opening, glycosylation and silylation processes.
引用
收藏
页码:2593 / 2598
页数:6
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