关于PhI (OAc) 2在CMD途径中的介导的分子内C (sp3) -H激活作用的计算研究
Peng-Yu Liu1,2, Yuehui Xu1,3, Xin Peng1,3
1State Key Laboratory of Fine Chemicals, Ningbo Institute of Dalian University of Technology, No.26 Yucai Road, Ningbo 315016, China.
The Journal of organic chemistry
|November 24, 2025
概括
本研究详细介绍了使用基二酸盐的C(sp3) -H键的协同化-脱化 (CMD). 计算模拟揭示了一种新的催化途径,比传统方法提供了更高的效率.
科学领域:
- 有机金属化学 有机金属化学
- 计算化学的计算化学
- 反应机制研究 反应机制研究
背景情况:
- 协同化-脱化 (CMD) 对于C ((sp3) -H键的功能化至关重要.
- 超价试剂在有机合成中提供了独特的反应性.
- 的催化被广泛用于CH的激活和功能化.
研究的目的:
- 系统地研究使用利二甲酸 (PhI(OAc) 2的C(sp3) -H键的CMD过程.
- 为了比较两个不同的CMD路径:常规和氧化-加法-先行.
- 阐明在促进CMD反应中的作用.
主要方法:
- 密度函数理论 (DFT) 的计算用于系统的计算模拟.
- 波函数分析被用来识别稳定过渡状态.
- 对不同反应路径的动力学和热力学有利性进行比较分析.
主要成果:
- 氧化添加前的CMD路径,由四价单核系统促进,显示了增强的动力和热力学有利性.
- PhI(OAc) 2分解为乙氧基,氧化Pd(II) 到Pd(IV),这促进了CMD.
- 与银酸盐和酸盐系统相比,PhI(OAc) 2系统显示出更高的效率.
- 对CMD过渡状态的稳定归因于乙氧组的高基本性.
结论:
- PhI(OAc) 2试剂与催化剂相结合,提供了一种有效的C(sp3) -H键CMD的方法.
- 这项研究揭示了一种涉及高价值中间体的新型机制.
- 这些发现为C-H功能化催化系统的设计提供了宝贵的见解.
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