Gold mediated glycosylations: selective activation of propargyl 1,2-orthoesters in the presence of aglycones containing a propargyl moiety |
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| Authors: | Sureshkumar Gopalsamy Hotha Srinivas |
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| Institution: | Division of Organic Chemistry, Combi Chem-Bio Resource Center, National Chemical Laboratory, Pune, 411 008, India. s.hotha@ncl.res.in. |
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| Abstract: | Selective activation of propargyl 1,2-orthoesters in the presence of propargyl glycosides and propargyl ethers was studied; a catalytic amount of AuBr(3) activated the propargyloxy group of the 1,2-orthoester thereby giving access to disaccharides with the propargyl group at the reducing end; furthermore, propargyl ethers were unaffected under the reaction conditions. |
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