具有伊米诺-碳铁替代物的双胺铁复合物作为乙烯寡合化高度活性催化剂
Yulan Ma1, Ronggang Huang1, Licheng Zhan1,2
1Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China.
新的铁复合物在乙烯寡合化中表现出高活性,产生有价值的α-olefins,其性副产品最小. 催化剂设计和反应条件被优化为高效的化学合成.
科学领域:
- 有机金属化学 有机金属化学
- 聚合物化学 聚合物化学
- 催化剂是一种催化剂.
背景情况:
- 乙烯寡合化是生产α-olefins的关键工业过程.
- 双胺铁复合物是已知的烯酸转化催化剂.
- 控制选择性和最大限度地减少诸如之类的副产品是关键的挑战.
研究的目的:
- 为了合成和评估新的bis-(imino) -pyridine铁复合物与乙烯寡合化中的乙烯替代剂.
- 研究替代剂的电子和固态调对催化活性和选择性的影响.
- 为了优化反应条件以提高催化剂性能.
主要方法:
- 一系列含有乙烯组的bis- ((imino) -pyridine铁复合物的合成.
- 在乙烯寡合化反应中对催化活性和选择性的评估.
- 反应参数的系统变化,包括温度,压力,催化剂负荷和共催化剂量.
主要成果:
- 所有合成的铁复合物都显示出对乙烯寡合化的高催化活性.
- 调替代剂有效地减少了状副产品的形成,同时保持了高活性.
- 以乙替代的复合物获得了异常活性 (1.56 × 10^8 g mol^-1(Fe) h^-1),94.1%的α-olefin选择性,只有0.1%的重量%的.
- 反应条件的优化进一步提高了催化性能.
结论:
- 双胺铁复合物与乙烯替代剂是乙烯寡合化的高效催化剂.
- 替代剂修改提供了一个强大的策略来控制选择性,并最大限度地减少形成.
- 优化反应条件对于最大限度地提高催化剂效率和产品产量至关重要.
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