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A new Pd(II)‐supported catalyst on magnetic SBA‐15 for C?C bond formation via the Heck and Hiyama cross‐coupling reactions
Applied Organometallic Chemistry ( IF 3.7 ) Pub Date : 2020-11-06 , DOI: 10.1002/aoc.6078
Leila Rahimi 1 , Yagoub Mansoori 1, 2 , Ayat Nuri 1 , Behzad Koohi‐Zargar 3 , Dolores Esquivel 4
Affiliation  

Magnetic mesoporous silica composite (MNP@SiO2‐SBA) was obtained via embedding magnetite nanoparticles between SBA‐15 channels. It was silylated with N‐(3‐(trimethoxysilyl)propyl)picolinamide (TMS‐PCA) and then complexed with Pd(II). The obtained supported Pd(II) catalyst (MNP@SiO2‐SBA‐PCA) was characterized by conventional methods. The prepared magnetic catalyst showed high activity in the Heck and Hiyama reactions under optimal reaction conditions, including solvent, amount of catalyst, base, and temperature. Aryl bromides and iodides showed better results than aryl chlorides, and the catalyst exhibited noticeable stability and reused several times.

中文翻译:

磁性SBA-15上用于C的新型Pd(II)负载催化剂通过Heck和Hiyama交叉偶联反应形成C键

磁性中孔二氧化硅复合材料(MNP @ SiO 2 -SBA)是通过将磁铁矿纳米粒子嵌入SBA-15通道之间而获得的。将其与N-(3-(三甲氧基甲硅烷基)丙基)吡啶啉甲硅烷基化(TMS-PCA),然后与Pd(II)络合。用常规方法表征了所获得的负载型Pd(II)催化剂(MNP @ SiO 2 -SBA-PCA)。在包括溶剂,催化剂用量,碱和温度在内的最佳反应条件下,制备的磁性催化剂在Heck和Hiyama反应中表现出高活性。芳基溴化物和碘化物显示出比芳基氯化物更好的结果,并且催化剂表现出显着的稳定性并且可以重复使用多次。
更新日期:2020-11-06
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