一种简单的 ((I) 催化剂,以PH3,初级和二级酸盐有效和选择性化烯
Aabid A Wani1, Juan José Gamboa Carballo1,2, Harikrishnan Jayaprakash1
1Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland.
合成了一种具有P,NH,N连接体的新型复合物,并被发现是水化反应的优秀催化剂. 这种中性胺基复合物在低负载下实现了高催化效率,使各种酸盐的合成成为可能.
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.
- 合成化学 合成化学
背景情况:
- 开发高效的催化系统用于化是至关重要的.
- 复合物具有作为贵金属催化剂具有成本效益和地球丰富的替代品的潜力.
研究的目的:
- 合成和描述一种新型的三酸盐P,NH,N配体及其复合物.
- 为了研究在水化反应中合成的复合物的催化活性.
主要方法:
- 具有P,NH,N捐赠基因的三酸连接体 (L) 的多步合成.
- 连接体与[MnBr(CO) 5]的反应形成八面体和三面体双体复合体.
- 为了产生中性和阳离子复合物,进行了脱化研究.
- 密度函数理论 (DFT) 的计算和分子中的原子量子理论 (QTAIM) 的分析.
- 催化化反应与各种激活的烯酸.
主要成果:
- 一个P,NH,N配体及其面部复合物的合成[Mn(CO) 3(L) ]Br.
- 形成一个中性Mn(I) 胺基复合物[Mn(CO) 2 L-H]和一个阳离子复合物[Mn(CO) 2 L-2H]-.
- DFT和QTAIM分析揭示了一种具有部分双键特性的Mn-N键,以及胺复合体中的芳香Mn2C2环.
- 中性胺基复合物[Mn(CO) 2 ((L-H) ]在水化中表现出极好的催化活性 (>40,000 h-1的周转频率).
- 成功地化了多种活性烯酸,包括化物,,,烯酸,乙烯,乙烯和烯衍生物.
结论:
- 合成的中性胺复合物是一种高度有效的催化剂,用于化.
- 催化系统能够有效地从各种基质中合成酸盐.
- 这项工作突显了复合物在催化和有机化学中的潜力.
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