乙烯基乙以为乙烯酸乙的催化二聚化
Changle Chen1, Richard F Jordan
1Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, USA.
催化剂促进了乙烯基乙烯的二分化和循环化. 这些催化剂还可以启动乙烯聚合,展示多功能催化活性.
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.
- 聚合物科学 聚合物科学
背景情况:
- 乙烯基乙烯是有机合成中的多功能单体.
- 复合物是各种化学转换中广泛使用的催化剂.
- 了解催化机制对于开发新的合成方法至关重要.
研究的目的:
- 用 (α-diimine) PdCl(+) 种类来研究乙烯基乙烯的催化二元化和循环化.
- 阐明乙形成的反应机制.
- 探索这些复合体在乙烯聚合中的潜力.
主要方法:
- 催化反应涉及基和基乙烯乙烯.
- 乙烯乙烯的循环化.
- 开始乙烯聚合. 开始乙烯聚合.
- 机理学研究涉及在现场物种的生成和表征.
主要成果:
- 实现了乙烯基乙烯的催化二聚变为β,玛不和乙.
- 已经成功地证明了二维尼尔的循环转化为循环乙.
- 活性催化物被确定为一个PdOR醇氧化物.
- 复合物在乙烯的存在下启动了乙烯聚合.
结论:
- (Alpha-diimine) PdCl ((+) 复合物是乙烯基以太转换的有效催化剂.
- 提出了一种可能的机制,涉及双重乙烯基以太插入和β-OR消除.
- 这些催化剂表现出双重功能,使得乙合成和烯聚合成为可能.
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