Iridium supported on porous polypyridine-oxadiazole as high-activity and recyclable catalyst for the borrowing hydrogen reaction
作者:Jiahao Li、Anruo Mao、Wei Yao、Haiyan Zhu、Dawei Wang
DOI:10.1039/d2gc00190j
日期:——
HRTEM, SEM, and XPS, and revealed high catalytic activity for the reaction of dimethyl-6-aminouracil with benzyl alcohols, 1,3-dimethylbarbituric acid with benzyl alcohols and 2-aminobenzylamine and benzyl alcohols through dehydrogenation and the borrowing hydrogen strategy with alcohol or water as the solvent. In addition, this PPO-Ir catalyst could be recycled and reused without a manifest loss of
多相催化剂的均质化是一个有价值和有趣的研究课题。以吡啶-恶二唑和1-碘-4-乙烯基苯为原料,设计并合成了多孔聚吡啶-恶二唑(PPO)作为载体和配体。铱通过配位键固定在这种聚合物(配体)的骨架上。这种多孔聚吡啶-恶二唑铱催化剂 (PPO-Ir) 通过 XRD、BET、EDS、HRTEM、SEM 和 XPS 清楚地表征,并显示出对二甲基-6-氨基尿嘧啶与苯甲醇 1,3 反应的高催化活性-二甲基巴比妥酸与苄醇和2-氨基苄胺与苄醇通过脱氢和借氢策略以醇或水为溶剂。此外,这种 PPO-Ir 催化剂可以回收再利用,至少 5 次没有明显的催化活性损失,并显示出潜在的应用价值。进一步进行机制探索以阐明该PPO-Ir和这些转变。