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A Noble‐Metal‐Free Metal–Organic Framework (MOF) Catalyst for the Highly Efficient Conversion of CO 2 with Propargylic Alcohols
Author(s) -
Hou ShengLi,
Dong Jie,
Jiang XiaoLei,
Jiao ZhuoHao,
Zhao Bin
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201811506
Subject(s) - catalysis , noble metal , triethylamine , metal , chemistry , metal organic framework , substrate (aquarium) , combinatorial chemistry , base metal , organic chemistry , chemical engineering , materials science , metallurgy , oceanography , adsorption , geology , welding , engineering
Cyclization of propargylic alcohols with CO 2 is an important reaction in industry, and noble‐metal catalysts are often employed to ensure the high product yields under environmentally friendly conditions. Herein a porous noble‐metal‐free framework 1 with large 1D channels of 1.66 nm diameter was synthesized for this reaction. Compound 1 exhibits excellent acid/base stability, and is even stable in corrosive triethylamine for one month. Catalytic studies indicate that 1 is an effective catalyst for the cyclization of propargylic alcohols and CO 2 without any solvents under mild conditions, and the turnover number (TON) can reach to a record value of 14 400. Furthermore, this MOF catalyst also has rarely seen catalytic activity when the biological macromolecule ethisterone was used as a substrate. Mechanistic studies reveal that the synergistic catalytic effect between Cu I and In III plays a key role in the conversion of CO 2 .