Synthesis and characterization of pentaerythritol-derived oligoglycol and their application to catalytic Wittig-type reactions |
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Authors: | Li Kai Ran Li Yu Yi-Hua Tang Yong |
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Affiliation: | State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 354 Fenglin Lu, Shanghai 200032, China. |
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Abstract: | Several pentaerythritol-derived oligoglycols 1 with free hydroxyl groups are readily prepared by a convergent approach. Quantitative (13)C NMR proves to be an efficient tool for the characterization of oligoglycols. The corresponding telluride of oligoglycol 17 is synthesized and used as a good catalyst for Wittig-type reactions in preparing both disubstituted and trisubstituted olefins in good to high yields. |
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