A triruthenium carbonyl cluster bearing a bridging acenaphthylene ligand: An efficient catalyst for reduction of esters, carboxylic acids, and amides by trialkylsilanes
A triruthenium carbonyl cluster bearing a bridging acenaphthylene ligand: An efficient catalyst for reduction of esters, carboxylic acids, and amides by trialkylsilanes
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DOI：
10.1021/jo025726n
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发表时间：
2002-07-12
影响因子：
3.6
通讯作者：
Nagashima, H
中科院分区：
文献类型：
--
作者：
Matsubara, K;Iura, T;Nagashima, H
使用带有桥连苊基配体的三钌羰基簇（μ（3），η（2）：η（3）：η（5）-苊基）Ru-3（CO）（7）作为催化剂，实现羧酸、酯和酰胺与三烷基硅烷的有效还原。通过氢化硅烷预活化催化剂可加速反应。空间小的三烷基硅烷在这些反应中是有效的。羧酸和酰胺的还原分别有效地产生相应的甲硅烷基醚和胺。酯的还原产生甲硅烷基和烷基醚的混合物，但可以通过改变硅烷和溶剂来控制。
An efficient reduction of carboxylic acids, esters, and amides with trialkylsilanes is accomplished using a triruthenium carbonyl cluster bearing a bridging acenaphthylene ligand, (mu(3),eta(2):eta(3):eta(5)-acenaphthylene)Ru-3(CO)(7), as the catalyst. Preactivation of the catalyst by hydrosilanes accelerates the reactions. Sterically small trialkylsilanes are effective in these reactions. Reduction of carboxylic acids and amides efficiently produces the corresponding silyl ethers and amines, respectively. Reduction of esters gives a mixture of silyl and alkyl ethers, but can be controlled by changing the silanes and solvents.