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Ruthenium complex catalyzed selective addition of carboxylic acids to acetylenes giving enol esters |
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| Affiliation: | 1. Department of Chemistry, Renmin University of China, Beijing 100872, China;2. School of Chemistry & Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, Henan, China;1. A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russia;2. Limnological Institute, Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya St, 664033 Irkutsk, Russia |
| Abstract: | Carboxylic acids react with acetylenes in the presence of a catalytic amount of bis(η5-cyclooctadienyl)ruthenium-PR3-maleic anhydride in toluene to give enol esters in good to excellent yields with high regioselectivity. |
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