在-单元中可逆添加H2作为催化剂的有希望的策略
W Hill Harman1, Jonas C Peters
1Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States.
Journal of the American Chemical Society
|March 3, 2012
概括
研究人员使用二素-联体合成了新的复合物. 这些复合物,特别是B-mesityl衍生物,表现出高效的催化活性化烯酸,突出显示了它们在化学合成中的潜力.
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.
- 化学 化学
背景情况:
- 双素连接体在协调化学和催化过程中至关重要.
- 的功能化为配体提供了独特的电子和硬质性质.
- 复合物是各种有机转换的多功能催化剂.
研究的目的:
- 通过化二素-联体支持新型复合物的合成和特征.
- 研究这些复合物的协调行为和结构特征.
- 评估化反应中合成的复合物的催化活性.
主要方法:
- 合成含有ArB(o-Ph(2)PC(6)H(4))(2) 连接体的复合物.
- 用X射线衍射进行[{Ph}DPB{Ph}Ni{THF}的结构特征.
- 多核核核磁共振光谱用于溶液中的 (II) 复合物的特征.
- 使用[(Mes) DPB ((Ph) ]Ni.Ni的烯基基底物的催化化.
主要成果:
- 成功合成了伪四面体复合体,具有 η(2) -B,C 协调.
- 通过X射线衍射,在[{Ph}DPB{Ph}]Ni{THF}中进行短-干相互作用的表征.
- 一个伪三坐标复合物的分离,[(Mes) DPB(Ph) ]Ni,表现出可逆二氧化添加.
- 在温和条件下,通过[{Mes}DPB{Ph}]Ni证明高效的烯化催化.
结论:
- 双素-联体框架有效地支持独特的协调几何.
- 乙-梅西复合物作为化的有效催化剂,展示了有机合成中的潜在应用.
- 这项工作扩大了在有机金属化学和催化剂中的联结体设计的范围.
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