Stereoselective synthesis of α-glucosides from 3-O-propargyl protected glucal exploiting the alkynophilicity of AuCl3 |
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Authors: | Sudhir Kashyap |
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Institution: | Division of Organic Chemistry: Synthesis, Combi Chem—Bio Resource Center, National Chemical Laboratory, Pune 411 008, India |
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Abstract: | The stereoselective synthesis of 2,3-unsaturated α-d-glucosides by the SN2′ addition of diverse aglycones onto 4,6-di-O-benzyl-3-O-propargyl glucal was achieved using a catalytic quantity of AuCl3. The Au catalyzed reaction was explored using various aliphatic, aromatic, alicyclic and monosaccharide aglycones. The current protocol tolerates diverse functional groups and is highly stereoselective, fast, catalytic and mild. |
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