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首页> 外文期刊>RSC Advances >'On-water' organic synthesis: a green, highly efficient, low cost and reusable catalyst system for biaryl synthesis under aerobic conditions at room temperature
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'On-water' organic synthesis: a green, highly efficient, low cost and reusable catalyst system for biaryl synthesis under aerobic conditions at room temperature

机译：“水上”有机合成：绿色，高效，低成本和可重复使用的催化剂系统，用于在室温下好氧条件下合成联芳基

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摘要

A simple, greener, efficient, low cost and mild protocol has been developed for sucrose assisted palladium-catalyzed Suzuki reactions in water at room temperature under aerobic conditions. The results demonstrate that the sucrose played a crucial role making this protocol highly efficient. The PdCl2/sucrose/K2CO3/H2O system showed superb catalytic activity towards the Suzuki reaction of a wide range of aryl/heteroaryl halides with different substituted phenylboronic acids. This method offers an attractive alternative to the existing protocols since the reaction proceeds in aqueous media at room temperature with operational simplicity, shorter reaction time, cost-effectiveness and provides the products in high yields. The catalytic system is highly recyclable, allowing the reuse of the palladium catalyst in subsequent catalytic runs without significant loss of activity.
机译：已经开发了一种简单，绿色，高效，低成本和温和的方案，用于在室温下好氧条件下在水中蔗糖辅助的钯催化的Suzuki反应。结果表明，蔗糖起着至关重要的作用，使该协议高效。 PdCl2 /蔗糖/ K2CO3 / H2O系统对多种芳基/杂芳基卤化物与不同的取代苯基硼酸的Suzuki反应显示出极好的催化活性。该方法为现有方案提供了有吸引力的替代方法，因为该反应在室温下在水性介质中进行，操作简便，反应时间短，成本效益高，并能以高收率提供产品。该催化系统是高度可回收的，允许钯催化剂在随后的催化运行中重复使用，而不会显着降低活性。

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