有机金属 (III) 复合物与交叉合和碳-异原子键形成反应相关
Bo Zheng1, Fengzhi Tang, Jia Luo
1Department of Chemistry, Washington University , One Brookings Drive, St. Louis, Missouri 63130-4899, United States.
Journal of the American Chemical Society
|April 10, 2014
概括
本研究报告了 (III) 复合物的分离和表征,证明了它们在关键的C-C和C-异原子键形成反应中的催化活性,包括交叉合. 这些发现凸显了在催化过程中的重要作用.
科学领域:
- 有机金属化学 有机金属化学
- 催化剂是一种催化剂.
- 的化学化学 的化学
背景情况:
- 复合物是C-C和C-原子键形成的重要催化剂.
- 虽然Ni ((0) 和Ni ((II) 是常见的,但Ni ((I) 和Ni ((III) 的中间体在一些反应中被提出.
研究的目的:
- 隔离,描述和研究 (III) 复合物的反应性.
- 提供证据证明 (III) 在催化交叉合和C-异原子键形成中的参与.
主要方法:
- (III) 复合物的隔离和结构特征.
- 对Ni (III) 种的光谱分析.
- 评估有机金属反应性,包括转移和减少性消除.
- 在Kumada和Negishi交叉合反应中测试催化活性.
主要成果:
- 成功地分离和表征了Ni (III) 复合物与和联体.
- 证明了这些Ni (III) 物种参与转移和减少性淘汰.
- 已确认Ni(III) 复合物是Kumada和Negishi交叉合反应的有能力的催化剂.
- 观察到的Ni (III) 种类促进了C-C和C-异原子键的形成.
结论:
- 有机金属Ni (III) 物种直接参与交叉合反应.
- (III) 中间体在氧化诱导的C-异原子键形成中起着关键作用.
- 这项工作提供了强有力的证据,证明Ni (III) 在有机合成中的催化效用.
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