Ruthenium-Catalyzed Vinylic Substitution Reactions with Nucleophiles via Butatrienylidene Intermediates
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- 作者：Yoshihiro Yamauchi ; Masahiro Yuki ; Yoshiaki Tanabe ; Yoshihiro Miyake ; Youichi Inada ; Sakae Uemura ; Yoshiaki Nishibayashi
- 刊名：Journal of the American Chemical Society
- 出版年：2008
- 出版时间：March 12, 2008
- 年：2008
- 卷：130
- 期：10
- 页码：2908 - 2909
- 全文大小：70K
- 年卷期：v.130,no.10(March 12, 2008)
- ISSN：1520-5126
文摘
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.
-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.