Nucleophilic Addition to Acetylenes in Superbasic Catalytic Systems: XIV. Vinilation of Diols in a System CsF-NaOH |
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| Authors: | L A Oparina M Ya Khil’ko N A Chernyshova S I Shaikhudinova L N Parshina Th Preiss J Henkelmann B A Trofimov |
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| Institution: | (1) Faworsky Institute of Chemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, 664033, Russia;(2) BASF Aktiengesellschaft, Ammonia Laboratory ZAR/C, M 311, 67056 Ludwigshafen, Germany |
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| Abstract: | A new catalytic system CsF-NaOH was developed for the synthesis of mono- and divinyl ethers of alkanediols exceeding in efficiency KOH. The nucleophilic addition of diols to acetylene in the presence of this system occurs both at enhance pressure (without solvent, 140–160°C) and atmospheric pressure (in DMSO medium, 100°C) of acetylene. Conditions were established of a selective preparation in a high yield of divinyl ethers from diols.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 5, 2005, pp. 677–683.Original Russian Text Copyright © 2005 by Oparina, Khil’ko, Chernyshova, Shaikhudinova, Parshina, Preiss, Henkelmann, Trofimov. |
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