Phenolic Hydroxyl-Functionalized Covalent–Organic Frameworks for Formal [3+2] Reaction,Macromolecular Chemistry and Physics

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Phenolic Hydroxyl-Functionalized Covalent–Organic Frameworks for Formal [3+2] Reaction
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2022-02-04 , DOI: 10.1002/macp.202100462
Baiwei Ma ₁ , Yimeng Xu ₁ , Fujia Hu ₁ , Guangci Zhang ₁ , Xiaofei Zheng ₂ , Zhuo Wang ₁ , Huijie Qiao ₁ , Dehong Yang ₁ , Liwei Mi ₁

Affiliation

Covalent–organic frameworks (COFs) are rarely used as heterogeneous catalysts for cycloaddition reactions, especially in [3+2] reactions. In this study, 4,4′,4″,4‴-(pyrene-1,3,6,8-tetrayl) tetra-aniline, 2,5-dihydroxyterephthalaldehyde, and 2,5-dimethylterephthalaldehyde are used to construct COFs with high porosity, crystallinity, and chemical stability. The phenolic and methyl groups on the pore channel of the COFs are precisely tuned to effectively serve as heterogeneous catalysts for the formal [3+2] reaction between 5-alkoxyoxazoles and azodicarboxylate or nitrosobenzene compounds. The resultant COFs that are assembled from adjustable building unit ratios exhibit excellent catalytic performance for the targeted [3+2] reaction.

中文翻译：

用于形式 [3+2] 反应的酚羟基官能化共价有机骨架

共价有机骨架（COF）很少用作环加成反应的非均相催化剂，尤其是在 [3+2] 反应中。在这项研究中，4,4',4”,4‴-(pyrene-1,3,6,8-tetrayl) 四苯胺、2,5-二羟基对苯二甲醛和 2,5-二甲基对苯二甲醛用于构建具有高孔隙率、结晶度和化学稳定性。COF 孔通道上的酚基和甲基基团经过精确调整，可有效地用作 5-烷氧基恶唑与偶氮二羧酸盐或亚硝基苯化合物之间的形式 [3+2] 反应的非均相催化剂。由可调节的建筑单元比例组装而成的 COF 对目标 [3+2] 反应表现出优异的催化性能。

更新日期：2022-02-04

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