A newfound ionic liquid with unprecedented activity for multiple base-catalyzed reactions
A newfound ionic liquid with unprecedented activity for multiple base-catalyzed reactions
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DOI：
10.1016/j.cej.2021.131955
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发表时间：
2022
影响因子：
15.1
通讯作者：
W. Deng;Jie Yao;Lei Shi;Wensheng Wei;Fei Chen;Guangwen Xu
中科院分区：
文献类型：
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作者：
W. Deng;Jie Yao;Lei Shi;Wensheng Wei;Fei Chen;Guangwen Xu
在催化化学中，开发具有优良活性和实用性的催化剂是最终目标。在此，我们发现了一种全新的有机催化剂1-乙基-3-甲基咪唑吡咯（[EmIm]Py）。在碳酸盐合成中，即使在0℃下，该催化剂的效率也达到了创纪录的20.7 gDMC(molCatmin)−1。值得注意的是，该催化剂在各种碱催化反应中比大多数报道的催化剂表现更好。[EmIm]Py在碳酸二甲酯（DMC）工业生产中也具有潜在的可操作性。通过实验和理论相结合的研究，提出了在[EmIm]Py催化剂上碳酸丙烯与甲醇酯化反应的机理。
In catalytic chemistry, exploiting catalysts with superior activity and practicability is the ultimate goal. Herein, we found a brand-new organocatalyst 1-ethyl-3-methylimidazolium pyrrole ([EmIm]Py). Using in carbonate synthesis, this catalyst realized a record-breaking efficiency of 20.7 gDMC(molCatmin)−1even at 0℃. Notably, this catalyst did better in varied base-catalyzed reactions than most reported catalysts. [EmIm]Py also exhibited potential operability in dimethyl carbonate (DMC) industrial production. The mechanism of propylene carbonate (PC) and methanol interesterification over [EmIm]Py catalyst was proposed by a combination of experimental and theoretical studies.