A novel acid–base bifunctional amphiphilic organic nanotube (acid–base-nanotube) containing 1-(2-(prop-2-yn-1-yloxy)ethyl)-1H-imidazole (PEI) groups as basic sites on the wall and benzenesulfonic acid (BSA) groups as acidic sites on the corona of nanotubes was successfully synthesized by a combination of molecular-template core–shell bottlebrush copolymers and click reaction. Owing to the hydrophobic cavity microenvironments, a hydrophilic corona, and site-isolation features of organic tubular structures, the resultant acid–base-nanotube showed high catalytic performance for one-pot deacetalization-Knoevenagel cascade reactions in water.

中文翻译：

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酸碱双功能两亲有机纳米管在水中一锅级联反应的催化剂†

一种新型的基于酸的双功能两亲有机纳米管（基于酸的纳米管），其含有1-（2-（prop-2-yn-1-yloxy）乙基）-1 H-咪唑（PEI）基团作为壁上的基本位点分子模板核-壳型洗瓶刷共聚物和点击反应的结合成功地合成了苯磺酸基（BSA）基团和纳米管电晕上的酸性位点。由于疏水腔的微环境，亲水性电晕和有机管状结构的位点隔离特征，所得的酸碱纳米管对水中的一锅脱缩醛-Knoevenagel级联反应显示出高催化性能。