期刊
TETRAHEDRON LETTERS
卷 59, 期 35, 页码 3341-3344出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2018.07.052
关键词
Vinyl sulfone; Ionic-liquid; 1,5-Disubstituted 1,2,3-triazole; Triazolylmethylene linked disaccharides; 1,3-Dipolar cycloaddition
资金
- Department of Science and Technology (DST), New Delhi [SB/S1/OC-30/2014]
- Council of Scientific and Industrial Research
Suitably protected carbohydrates were joined together using 1,5-disubstituted 1,2,3-triazolylmethylene (1,5-DTM) linkers. The DTM linker was built by the 1,3-dipolar cycloaddition reactions of a series of sugar azides with vinyl sulfonylmethylene-modified furanose or pyranose under metal free conditions. Three different biodegradable hydroxylammonium based ionic liquids were studied in water as the reaction media. The N,N-dimethyl ethanolammonium formate-water mixture was found to be the best reaction medium because the reaction time was shortened considerably to generate a dozen new 1,5-DTM-linked disaccharides. (C) 2018 Elsevier Ltd. All rights reserved.
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