Cu / CuxOy NPs结构化的COF:一种可循环利用的催化剂,用于通过大气环化CO2的利用来合成恶唑烷二酮。
摘要:
本研究描述了具有优异的表面积,可调节的孔径和巨大的CO 2捕集效率的结晶共价有机骨架(COF)的有利构造,可通过将CO 2引入反应性极强的有机骨架中来促进新型多组分环化。在催化性Cu / Cu x O y NP负载的COF的存在下,几种2-溴-3-烷基丙烯酸与几种胺衍生物和CO 2(0.1 MPa)的结合以优异的收率转化为所需的恶唑烷二酮。 96%)在无碱条件和环境温度下进行。
Chemical fixation of carbon dioxide by copper catalyzed multicomponent reactions for oxazolidinedione syntheses
作者:Siddharth Sharma、Ajay K. Singh、Devendra Singh、Dong-Pyo Kim
DOI:10.1039/c4gc02089h
日期:——
The quest to reduce greenhouse gases has triggered the development of new chemical fixation of carbon dioxide.
减少温室气体排放的探索已经引发了新的化学固定二氧化碳的发展。
Simple and Efficient Copper-Catalyzed Approach to 2,4-Disubstituted Imidazolones
作者:Xiaoyu Gong、Haijun Yang、Hongxia Liu、Yuyang Jiang、Yufen Zhao、Hua Fu
DOI:10.1021/ol1008813
日期:2010.7.16
Some imidazolone derivatives are biological and pharmaceutical active molecules and the chromophores of the fluorescent proteins. In this communication, a simple and efficient approach to 4-arylidene-2-alkyl-4,5-dihydro-1H-imidazol-5-ones (2,4-disubstituted imidazolones) has been developed, and the protocol uses readily available 2-bromo-3-alkylacrylic acids and amidines as the starting materials without addition of any ligand or additive. The reactions were performed under mild conditions. Therefore, the present method will be of wide application in organic chemistry and medicinal chemistry.
Reich et al., Helvetica Chimica Acta, 1920, vol. 3, p. 794
作者:Reich et al.
DOI:——
日期:——
Hamed, E. A.; Sharaf, S. M.; El-Hegazy, Fatma M., Egyptian Journal of Chemistry, 1996, vol. 39, # 5, p. 455 - 464
作者:Hamed, E. A.、Sharaf, S. M.、El-Hegazy, Fatma M.、Youssef, A. A.
DOI:——
日期:——
Cu/Cu<sub>x</sub>O<sub>y</sub> NPs architectured COF: a recyclable catalyst for the synthesis of oxazolidinedione <i>via</i> atmospheric cyclizative CO<sub>2</sub> utilization
作者:Somnath Sarkar、Swarbhanu Ghosh、Jahangir Mondal、Sk. Manirul Islam
DOI:10.1039/d0cc04835f
日期:——
organic skeletons. In the presence of a catalytic Cu/CuxOy NP-loaded COF, several 2-bromo-3-alkylacrylic acids combined with several amine derivatives and CO2 (0.1 MPa) are converted to the desired oxazolidinediones in excellent yields (up to 96%) under alkali-free conditions and ambient temperature.
本研究描述了具有优异的表面积,可调节的孔径和巨大的CO 2捕集效率的结晶共价有机骨架(COF)的有利构造,可通过将CO 2引入反应性极强的有机骨架中来促进新型多组分环化。在催化性Cu / Cu x O y NP负载的COF的存在下,几种2-溴-3-烷基丙烯酸与几种胺衍生物和CO 2(0.1 MPa)的结合以优异的收率转化为所需的恶唑烷二酮。 96%)在无碱条件和环境温度下进行。