Liu Y, Yu XB, Zhang XM, Zhong Q, Liao LH, Yan N. Transition-metal-free synthesis of aryl 1-thioglycosides with arynes at room temperature.
RSC Adv 2021;
11:26666-26671. [PMID:
35479995 PMCID:
PMC9037310 DOI:
10.1039/d1ra04013h]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 07/22/2021] [Indexed: 11/21/2022] Open
Abstract
A mild, convenient and transition-metal-free protocol for the synthesis of aryl 1-thioglycosides is presented via arynes generated in situ combined with glycosyl thiols in the presence of TBAF(tBuOH)4. The methodology provides a general and efficient way to prepare a series of functionalized thioglycosides in good to excellent yields with a perfect control of the anomeric configuration at room temperature. In addition, the reaction conditions tolerate a variety of the pentoses and hexoses, and the reaction also performs smoothly on protected monosaccharides and disaccharides.
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