3360-68-7Relevant articles and documents
Design and preparation of HPW-anchored magnetic carbon nitride nanosheets: an efficient and eco-friendly nanocomposite for one-pot synthesis of α-amino phosphonates
Azhdari, Asieh,Azizi, Najmedin
, p. 4915 - 4928 (2021/07/28)
Heterogeneous catalysis is one of the fastest and greatest developing branches and longstanding challenges in academic researchers and the chemical industry. Carbon-based material with various functional groups, the most abundant elements, and the main component in natural products provide a unique platform for heterogeneous catalysis due to their excellent biocompatibility and high performance. Herein, we introduce a novel nanocomposite comprising of different acids anchored to magnetic mesoporous carbon nitrides through a grindstone method to enhance nanocomposite catalysts’ environmentally benign capability. As a result, the obtained porous magnetic catalysts show the highest possible activity and product selectivity for facile preparation of α-amino phosphonates derivatives in good to excellent yields at ambient temperature. This fast and straightforward methodology offers pot economy for the satisfactory reaction of various aldehyde, amine, and triaryl and trialkyl phosphite with a broad range of functional groups in a gram scale under mild reaction conditions.
Cross-dehydrogenative coupling strategy for phosphonation and cyanation of secondary N-alkyl anilines by employing 2,3-dichloro-5,6-dicyanobenzoquinone
Liu, Qing,Yu, Shuchen,Hu, Liangzhen,Hussain, Muhamad Ijaz,Zhang, Xiaohui,Xiong, Yan
, p. 7209 - 7217 (2018/11/10)
The cross-dehydrogenative coupling strategy for metal-free phosphonation and cyanation of secondary N-alkyl anilines has been developed firstly under mild reaction conditions. Based on detailed optimization of reaction conditions, the substrate generality of N-alkyl anilines and various hydrogen phosphonates has been investigated, and a series of versatile α-aminophosphonates and α-aminonitriles were therefore furnished in good to excellent yields. A plausible collective reaction mechanism through dehydrogenation to imine formation, then to respective α-aminophosphonates and α-aminonitriles was proposed.
Synthesis of α-aminophosphonates using a mesoporous silica catalyst produced from sugarcane bagasse ash
Boza, Arthur F.,Kupfer, Vicente L.,Oliveira, Aline R.,Radovanovic, Eduardo,Rinaldi, Andrelson W.,Meneguin, Joziane G.,Domingues, Nelson L. C.,Moisés, Murilo P.,Favaro, Silvia L.
, p. 23981 - 23986 (2016/03/15)
A new green synthesis route is proposed for obtaining a mesoporous material using sugarcane bagasse ash (SCBA) as the silica source. The material obtained was denoted by SBA-16 and its mesostructure was characterized by low-angle X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption techniques. Sulfonic acid groups were introduced to the as-synthesized material, resulting in an acid catalyst denoted by SBA-16/SO3H. The catalytic activities of SBA-16 and SBA-16/SO3H were investigated in Kabachnik-Fields reactions, where α-aminophosphonate compounds were produced. The results show that both products can be considered as promising catalysts, where SBA-16/SO3H showed a slightly better performance than SBA-16.
