Bifunctional Organic Polymeric Catalysts with a Tunable Acid-Base Distance and Framework Flexibility

被引：11

作者：

Chen, Huanhui ^{[1
]}

Wang, Yanan ^{[1
]}

Wang, Qunlong ^{[1
]}

Li, Junhui ^{[1
]}

Yang, Shiqi ^{[1
]}

Zhu, Zhirong ^{[1
]}

机构：

[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

美国国家科学基金会;

关键词：

COOPERATIVE CATALYSIS; ALDOL REACTIONS; ACETONE-D6; AMINES;

D O I：

10.1038/srep06475

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Acid-base bifunctional organic polymeric catalysts were synthesized with tunable structures. we demonstrated two synthesis approaches for structural fine-tune. In the first case, the framework flexibility was tuned by changing the ratio of rigid blocks to flexible blocks within the polymer framework. In the second case, we precisely adjusted the acid-base distance by distributing basic monomers to be adjacent to acidic monomers, and by changing the chain length of acidic monomers. In a standard test reaction for the aldol condensation of 4-nitrobenzaldehyde with acetone, the catalysts showed good reusability upon recycling and maintained relatively high conversion percentage.

引用

页数：6

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