ortho-C─H 通过卡泰拉尼策略基化烯化物
Jian-Shu Wang1, Zequan Liu1, Guangyin Qian1
1Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, and TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China.
一个新的/norbornene催化系统使得化的有效失效. 这种方法使用一种诺波 (NBE) 衍生媒介,以广泛的基质范围和功能组耐受性实现正基C─H化和ipso-olefination.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 合成方法论 合成方法论
背景情况:
- 化是交叉合反应中不那么有反应性的基质.
- 开发有效的化二氧化功能失调方法仍然是一个挑战.
研究的目的:
- 开发一种通用和实用的催化系统,用于二化的二功能化.
- 探索诺波伦烯 (NBE) 衍生物作为催化中介物的实用性.
- 为了研究观察到的转换的机制.
主要方法:
- 帕拉催化反应采用一种特定的norbornene (NBE) 衍生物和一种富含电子的素连接体.
- 使用多种电子变异的化 (57个例子) 测试系统.
- 密度函数理论 (DFT) 计算以阐明反应机制.
主要成果:
- 在中等到良好的产量中,成功的C─H基化/ipso-olefination.
- 在后期阶段的功能化中表现出卓越的功能组耐受性,可扩展性和适用性.
- 通过与酸和化物化学集成,开发了三次卡泰拉尼反应序列.
- DFT计算揭示了非对应相互作用在促进NBE插入中的作用.
结论:
- 开发的/norbornene系统为化的功能丧失提供了一个强大的新工具.
- 该NBE中介体与催化剂和连体起着关键的协同作用.
- 该方法允许快速构建分子复杂性和多样性.
- 通过DFT计算了解该机制有助于进一步设计催化剂.
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