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Consecutive Reactions of Dialkyl Ethynyl Carbinols with Acetylene in Superbase KOH/DMSO Suspension |
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| Authors: | Elena Yu Schmidt Ivan A Bidusenko Nadezhda V Zorina Igor A Ushakov Al’bina I Mikhaleva Ludmila V Klyba Boris A Trofimov |
| Institution: | A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russian Federation |
| Abstract: | 2-Methylbut-3-yn-2-ol, a tertiary propargylic alcohol, reacts with acetylene under pressure in superbase KOH/DMSO suspension (80 °C, 1 h) to afford, along with the expected vinyl ether, 2,2,4,4-tetramethyl-5-methylidene-1,3-dioxolane, 2,5-dimethyl-5-(vinyloxy)hex-3-yn-2-ol and (Z)-2-methyl-4-(2-methylbut-3-yn-2-yloxy)but-3-en-2-ol. |
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