17539-81-0Relevant articles and documents
Optimizing the performance of porous pyridinium frameworks for carbon dioxide transformation
Song, Yanpei,Sun, Qi,Aguila, Briana,Ma, Shengqian
, p. 557 - 562 (2020)
Multifunctional catalysts derived from the integration of discrete catalytic partners in a confined space represent an important approach to emulate some of the design philosophies of enzymes. In an effort to design concepts for highly active catalysts for CO2 transformations, we synthesize and contrast the performance of two porous pyridinium frameworks. The activity is found to be significantly amplified by the introduction of the amine group on the ortho position of the pyridinium moieties. The resulting catalyst is capable of highly active and selective cycloaddition of aziridines with CO2 to 5-substituted-2-oxazolidinone, even under ambient conditions (1 bar, 22 °C). Its high activity originates from CO2 activation by the pendant amine group in the vicinity of the active species, which facilitates the subsequent catalytic steps.
Eco-friendly co-catalyst-free cycloaddition of CO2 and aziridines activated by a porous MOF catalyst
Shi, Ying,Zhao, Jian,Xu, Hang,Hou, Sheng-Li,Zhao, Bin
, p. 1316 - 1322 (2021/07/17)
Cycloaddition of CO2 with aziridines is an important reaction to obtain high-value products. Porous MOFs can catalyze this reaction, but co-catalysts are still necessary to improve the catalytic performance. Such a reaction catalyzed by MOFs-based materials without co-catalyst has not been reported hitherto. Herein, a porous and stable three-dimensional (3D) framework {[Ni(DCTP)]·6.5DMF}n (1) with a large Langmuir surface area of 3,789 m2/g was synthesized, which displayed high I2 adsorption ability up to 731.0 mg/g and could release it reversibly. Additionally, it exhibited a high CO2 adsorption capacity of 104.0 cm3/g at 273 K. The investigation results revealed 1 could effectively catalyze the cycloaddition of CO2 and aziridines in the absence of additional co-catalyst, and it could maintain the catalytic activity after five cycles. Furthermore, 1 also exhibited high catalytic activity for the gram-scale experiment. Importantly, it is the first MOF material as a heterogeneous catalyst for the conversion of CO2 and aziridines without co-catalyst. [Figure not available: see fulltext.].
Efficient Cycloaddition of CO2and Aziridines Activated by a Quadruple-Interpenetrated Indium-Organic Framework as a Recyclable Catalyst
Tian, Xue-Rui,Shi, Ying,Hou, Sheng-Li,Ma, Yue,Zhao, Bin
supporting information, p. 15383 - 15389 (2021/10/20)
On the basis of the global warming effect, it is of great significance to convert CO2 into the high value-added products oxazolidinones, but investigations on main-group-based metal-organic frameworks (MOFs) as heterogeneous catalysts still have not been