由聚氧甲基酸盐催化,将氧气从O(2) 插入锡-基键中
Alexander M Khenkin1, Irena Efremenko, Jan M L Martin
1Department of Organic Chemistry, Weizmann Institute of Science , Rehovot, Israel 76100.
聚氧甲H5PV2Mo10O40通过电子转移激活锡-碳键,产生1-butanol和 (n-Bu3Sn) 2O. 这种反应与分子氧具有催化作用,为有机化合物转化提供了一条新的途径.
科学领域:
- 无机化学 无机化学
- 有机金属化学 有机金属化学
- 催化剂是一种催化剂.
背景情况:
- 聚氧甲酸盐 (POMs) 是多功能无机集群,具有可调节的氧化还原特性.
- 有机蛋白化合物被广泛使用,但却引发了环境问题.
- -碳键的激活对于功能化和降解至关重要.
研究的目的:
- 为了研究聚氧甲中介的-碳键激活的机制.
- 探索H5PV2Mo10O40在有机蛋白转化中的催化潜力.
- 为了识别反应中间体和产品.
主要方法:
- 由H5PV2Mo10O40启动的电子转移反应.
- 中介物质的光谱识别 (UV-vis,EPR).
- 质谱学 (ESI-MS) 和DFT计算用于结构阐明.
主要成果:
- H5PV2Mo10O40通过介导氧原子插入n-Bu4Sn.的锡碳键.
- 反应通过电子转移进行,形成过渡性离子对和协调性离子.
- 1-butanol和 (n-Bu3Sn) 2O是主要产品,在O2.2的存在下观察到催化周转.
结论:
- H5PV2Mo10O40通过氧化还原机制有效地激活了锡-碳键.
- 反应途径涉及初始电子转移和随后的键裂解.
- 催化系统显示了高效的有机化合物转化潜力.
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