Selective separation of meta- and para-cresol using nonporous adaptive crystals of perpropoxylated pillar[5]arene

IF 4.6 1区化学 Q1 CHEMISTRY, ORGANIC

Organic Chemistry Frontiers Pub Date : 2025-05-15 DOI:10.1039/d5qo00620a

Hongyan Zhang, Ming Li, Li Shao, Haozhong Liang, Bin Hua, Niveen M. Khashab, Feihe Huang

引用次数: 0

Abstract

The selective separation of meta-cresol (MC) and para-cresol (PC) remains a significant challenge due to their nearly identical physicochemical properties. Here, we report nonporous adaptive crystals (NACs) based on perpropoxylated pillar[5]arene (PrP5) for the efficient and selective adsorption of MC over PC. Specifically, PrP5 crystals demonstrate exceptional selectivity, achieving 94.00% purity in the separation of MC from an equimolar MC/PC mixture while maintaining robust regenerability across multiple cycles. Furthermore, the incorporation of PrP5 into a molecular sieve facilitates the selective removal of trace MC impurities, enhancing PC purity from 98.40% to 99.06% in a single cycle. These findings underscore the potential of PrP5-based NACs as a promising material for the separation and high-purity purification of compounds in industrial processes.

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用过丙氧基柱状[5]芳烃无孔自适应晶体选择性分离间甲酚和对甲酚

间甲酚（MC）和对甲酚（PC）由于其几乎相同的物理化学性质，选择分离仍然是一个重大的挑战。在这里，我们报道了基于过丙基化柱[5]芳烃（PrP5）的无孔自适应晶体（NACs），用于高效和选择性地吸附MC在PC上。具体来说，PrP5晶体表现出优异的选择性，在从等摩尔MC/PC混合物中分离MC时纯度达到94.00%，同时在多个循环中保持强大的可再生性。此外，PrP5掺入分子筛有利于选择性去除微量MC杂质，将PC纯度在单循环内从98.40%提高到99.06%。这些发现强调了基于prp5的NACs作为工业过程中化合物分离和高纯度纯化的有前途的材料的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Organic Chemistry Frontiers CHEMISTRY, ORGANIC-

CiteScore

7.90

自引率

11.10%

发文量

686

审稿时长

1 months

期刊介绍： Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.