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五坐标 (IV) 复合物作为一种新型Pt (II) 烯化复合物的前体,用于基激活
Ulrich Fekl1, Karen I Goldberg
1Department of Chemistry, Box 351700, University of Washington, Seattle, Washington, 98195-1700, USA.
Journal of the American Chemical Society
|June 13, 2002
概括
一种新的 (II) 复合物是由 (IV) 前体合成的. 这种复合物在温和条件下激活碳化合物,包括基,在催化应用中显示出潜力.
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.
- 无机化学 无机化学 有机化学
背景情况:
- 五坐标 (IV) 复合体可以经历热分解.
- 复合物以其在碳化合物转化中的催化活性而闻名.
研究的目的:
- 从的前体中合成和表征一种新的 (II) 复合物.
- 为了研究合成 (II) 复合物的碳化合物激活能力.
- 为观察到的碳化合物激活提出一种机制.
主要方法:
- 一个五坐标(IV) 复合体的热分解, (nacnac) PtMe3.3.
- 由此产生的 ((II) 复合物的特征.
- 使用/混杂实验进行碳化合物激活研究.
主要成果:
- 一种新型的烯 () (II) 复合物已成功合成.
- (II) 复合物在温和条件下证明了碳化合物的激活,包括基.
- 在碳化合物溶剂和联体之间观察到和混杂的证据.
结论:
- 合成的 (II) 复合物对碳化合物激活具有催化活性.
- 为激活过程提出了一种涉及olefin插入和C-H键氧化添加的机制.
- 这项研究为开发用于有机合成的新基催化剂开辟了道路.
相关概念视频
Properties of Organometallic Compounds
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Photochemical Electrocyclic Reactions: Stereochemistry
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
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