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Facile synthesis of alkyl- and arylboronate esters enabled by a carbon nanotube supported copper catalyst

机译：碳纳米管负载铜催化剂促进烷基硼酸酯和芳基硼酸酯的合成

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摘要

An efficient synthesis of alkylboronate esters via alkyl halide borylation catalysed by copper nanoparticles stabilised on nitrogen-doped carbon nanotubes (N-CNT) is reported. This nanocatalyst provides practical access to alkylboronate esters at room temperature in 1 h, with good functional group tolerance. The procedure is also applicable to the borylation of benzyl chlorides and bromides. Radical clock experiments suggest that the reaction involves a radical pathway. The catalyst can be recycled up to ten runs without appreciable loss in the activity. In addition, we demonstrated the use of this supported copper catalyst for the anti-Markovnikov-selective hydroboration of vinylarenes and borylation of aryl halides with B2pin2, providing alkyl- and arylboronate esters, respectively, in good to excellent yields.
机译：一个高效的合成alkylboronate酯通过烷基卤化物borylation催化了铜nitrogen-doped碳纳米粒子稳定纳米管(N-CNT)报道。提供实际访问alkylboronate酯在1 h,在室温下具有良好的功能集团宽容。的borylation苄氯化物陈词滥调。反应涉及一个激进的途径。催化剂可以回收到10分明显的损失的活动。演示了使用这种支持铜催化剂anti-Markovnikov-selectivevinylarenes和borylation的硼氢化反应烷基芳基卤化物B2pin2,提供,arylboronate酯分别在好优秀的收益率。

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