Interface-Active Metal Organic Frameworks for Knoevenagel Condensations in Water

Catalysts

Rixia Bai¹  Xiyan Hou¹  Yanmei Zhang¹  Xiang Zhang¹  Jun Li² 

[1] Life Science College, Dalian Nationalities (Minzu) University, Economical and Technological Development Zone, Dalian 116600, China;State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Science, P.O. Box 110, Dalian 116023, China;

关键词: metal organic framework;    ZIF-8;    Knoevenagel condensations;    Pickering emulsion;    recycle;   

DOI  :  10.3390/catal8080315

来源: DOAJ

【 摘 要 】

It is desirable but challenging to locate solid catalysts at the oil-water interface to stabilize “Pickering emulsions”, which is one of the promising ways to developefficient green chemical processes. Herein, water-stable metal organic framework ZIF-8 without any chemical modification was demonstrated to be an interface-active catalyst for Knoevenagel condensation in a biphasic system. Pickering emulsion formed under the reaction conditions due to its amphiphilic property, which was beneficial to the mass transfer and led to high catalytic performance. Moreover, it can be repeatedly applied for Knoevenagel condensation for at least six successive cycles without losing its catalytic activity and framework integrity.

【 授权许可】

Unknown