期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 141, 期 22, 页码 8737-8740出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b03766
关键词
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资金
- Natural Science Foundation of China [21631003, 21805005]
- Fundamental Research Funds for the Central Universities [FRF-BD-17-016A]
- Welch Foundation [AX-1730]
- National Science Foundation [DMR-1606826]
- University of Science and Technology Beijing
Hydrogen-bonded organic framework (HOF)-based catalysts still remain unreported thus far due to their relatively weak stability. In the present work, a robust porous HOF (HOF-19) with a Brunauer-Emmett-Teller surface area of 685 m(2) g(-1) was reticulated from a cagelike building block, amino-substituted bis-(tetraoxacalix[2]arene[2]triazine),depending on the hydrogen bonding with the help of pi-pi interactions. The postsynthetic metalation of HOF-19 with palladium acetate afforded a palladium(II)-containing heterogeneous catalyst with porous hydrogen-bonded structure retained, which exhibits excellent catalytic performance for the Suzuki-Miyaura coupling reaction with the high isolation yields (96-98%), prominent stability, and good selectivity. More importantly, by simple recrystallization, the catalytic activity of deactivated species can be recovered from the isolation yield 46% to 92% for 4-bromobenzonitrile conversion at the same conditions, revealing the great application potentials of HOF-based catalysts.
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