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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Temperature-Controlled Mono- and Diolefination of Arene Using Rh(III)/RTIL as an Efficient and Recyclable Catalytic System
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Temperature-Controlled Mono- and Diolefination of Arene Using Rh(III)/RTIL as an Efficient and Recyclable Catalytic System

机译：使用RH（III）/ RTIL作为一种有效且可回收的催化系统的温度控制的单反定义

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In this report, nonvolatile and chemically stable room-temperature ionic liquid [BMIM]NTf(2 )was first developed as an excellent reaction medium in the Rh(III)-catalyzed C-H bond-activated olefination. This reaction system is free of any organic solvents and is much safer without the need of pressure-tight equipment. Selective mono- and diolefination has been realized through temperature control for the first time. Room temperature gives mono-olefinated products predominantly with satisfactory yields, while 80 degrees C selectively generates a high yield of diolefinated products. A wide range of substrate scope with fine yields and satisfactory selectivity is achieved. The reaction can be scaled up to gram scale. Moreover, this catalytic system can be recycled at least 7 times with consistently high catalytic activity. This property reduces environmental contamination caused by the transition metal and saves costs significantly. This reaction approach can be applied in the synthesis of various valuable unsaturated aromatic compounds in academia and industry.
机译：在本报告中，首先首先在RH（III）中的优异反应介质中开发非挥发性和化学稳定的室温离子液[Bmim] NTF（2） - 催化的C-H键活化烯烃。该反应系统不含任何有机溶剂，并且在不需要压力密封设备的情况下更安全。通过第一次通过温度控制实现了选择性单缩法。室温主要呈令人满意的产率给予单烯醇烯丙基产品，而80℃选择性地产生高产的二硫化产品。实现了具有细度和令人满意的选择性的各种基板范围。反应可以缩放到克尺寸。此外，该催化系统可以通过始终如一的高催化活性再循环至少7次。该特性减少了过渡金属引起的环境污染，并显着节省成本。该反应方法可用于在学术界和工业中的各种有价值的不饱和芳族化合物的合成中。

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