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首页> 外文期刊>RSC Advances >Immobilized palladium nanoparticles within polymers as active catalysts for Suzuki-Miyaura reaction
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Immobilized palladium nanoparticles within polymers as active catalysts for Suzuki-Miyaura reaction

机译：固定在聚合物中的钯纳米粒子作为铃木-宫浦反应的活性催化剂

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摘要

A highly active and reusable catalyst Pd@PNP was developed for Suzuki-Miyaura reaction of aryl chlorides and bromides with aryl boronic acids, and the corresponding biphenyl compounds were obtained in good to excellent yields. Triphenylphosphine and palladium nanoparticles were immobilized in situ in the polymer formed from Pd catalyzed coupling of tris(4-bromophenyl) amine and benzene-1,4-diboronic acid. The immobilized triphenylphosphine enhanced the activity and the stability of the catalyst Pd@PNP, and the catalyst Pd@PNP can be reused at least 5 times with good activity. Functional groups, such as methoxyl, nitrile, tert-butyl, nitro, acyl and formyl groups, were well tolerated under the reaction conditions, and the corresponding products were obtained in high yields.
机译：开发了一种高活性和可重复使用的催化剂Pd @ PNP，用于芳基氯化物和溴化物与芳基硼酸的Suzuki-Miyaura反应，并以良好或优异的收率获得了相应的联苯化合物。将三苯基膦和钯纳米颗粒原位固定在由Pd催化的三（4-溴苯基）胺与苯-1,4-二硼酸偶合形成的聚合物中。固定化的三苯膦提高了催化剂Pd @ PNP的活性和稳定性，催化剂Pd @ PNP具有良好的活性，可重复使用至少5次。在反应条件下，对甲氧基，腈基，叔丁基，硝基，酰基和甲酰基等官能团的耐受性良好，并以高收率获得了相应的产物。

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