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芳香酮结构与烯烃加成反应中的区位选择效应的理论研究

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摘要 研究了芳香酮与烯烃在RuH2(CO)(PPh3)催化剂催化下发生亲核加成反应生成邻位产物的区位选择效应规律,采用从头算方法优化得到了12种芳香酮反应物的稳定结构,研究了共轭效应,电子效应和立体效应对反应活性和选择性的影响,提出了芳香酮上β位碳原子与羰基在LUMO轨道中形成平面“U弯区”是进行加成反应的必要条件。在同类骨架结构芳香环上,相同位置的取代原子不同,β位碳原子的正电荷越大。
出处 《中国科学(B辑)》 CSCD 北大核心 2000年第5期444-451,共8页 Science in China(Series B)
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