Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 10, Pages 2908-2909Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja710013y
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Novel ruthenium-catalyzed vinylic substitution reactions of vinylic trifluoromethanesulfonates with nucleophiles such as cyclic 1,3-diketones and alcohols have been found to give the corresponding vinylic-substituted products in good to high yields. This catalytic reaction is considered to be a new type of vinylic substitution reaction. Reactions of -ketoacetylenes with alcohols have also been found to afford the corresponding vinylic ethers in good yields. These catalytic reactions can be explained to proceed by proposing ruthenium-butatrienylidene complexes as key intermediates. We believe that this finding will open up a further aspect of the chemistry of metal-cumulenylidene complexes.
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