Lewis acid character of zero-valent gold nanoclusters under aerobic conditions: Intramolecular hydroalkoxylation of alkenes
Lewis acid character of zero-valent gold nanoclusters under aerobic conditions: Intramolecular hydroalkoxylation of alkenes
复制标题
DOI：
10.1246/cl.2007.646
复制
发表时间：
2007-05-05
影响因子：
1.6
通讯作者：
Sakurai, Hidehiro
中科院分区：
文献类型：
--
作者：
Kamiya, Ikuyo;Tsunoyama, Hironori;Sakurai, Hidehiro
聚N-乙烯-2-吡咯烷酮(Au：PVP NCS，pH=1.3 nm)稳定的金纳米团簇在有氧条件下以Lewis酸的形式存在于水介质中，促进未活化烯烃的分子内氢烷氧基化反应。分子氧在Au NCS表面生成一个具有Lewis酸性的反应中心，其中组成的金原子形式上处于零价态。
Gold nanoclusters stabilized by poly(N-vinyl-2-pyrrolidone) (Au:PVP NCs, phi = 1.3 nm) behave as Lewis acid catalyst in aqueous media under aerobic conditions, to promote the intramolecular hydroalkoxylation of unactivated alkenes. Molecular oxygen generates a reaction center having the Lewis acidic character on the surface of Au NCs in which constituent gold atoms are formally in zero-valence state.