71511-68-7Relevant articles and documents
Magnetic BaFe12O19/Al2O3: An Efficient Heterogeneous Lewis Acid Catalyst for the Synthesis of α-Aminophosphonates (Kabachnik–Fields Reaction)
Piri, Tayebeh,Peymanfar, Reza,Javanshir, Shahrzad,Amirnejat, Sara
, p. 3384 - 3394 (2019)
Abstract: The design and application of environmentally friendly catalysts to reduce the quantity of toxic wastes is critical for improving?the chemical synthesis process. Therefore, BaFe12O19/Al2O3, a magnetic mesoporous nanocomposites, were designed synthesized and characterized using different techniques such as energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), Brunauer–Emmett–Teller?(BET) adsorption method, and vibrating sample magnetometry (VSM). The prepared BaFe12O19/Al2O3 display a high surface area (1773.22?m2/g) with an average pore diameter of 3.946?nm from nitrogen sorption analysis. In addition, the synthesized nanocomposites prove to be an active heterogeneous Lewis acid catalyst for the solvent free synthesis of α-aminophosphonates at ambient temperature, through three-component reaction of aldehydes/ketones, amines and triethyl phosphite. The use of this catalyst results in an effortless magnetic recoverability and recyclability, high yield and short reaction time under solvent-free conditions. Graphic Abstract: [Figure not available: see fulltext.].
Highly efficient metal-free one-pot synthesis of α-aminophosphonates through reduction followed by Kabachnik–fields reaction using three-component system
Kolli, Murali Krishna,Elamathi, Palani,Chandrasekar, Govindasamy,Katta, Vishweshwar Rao,Balvantsinh Raolji, Gajendrasinh
, p. 638 - 649 (2018/02/28)
One-pot synthesis of α-aminophosphonates directly from aryl nitro compounds, aldehydes/ketones, and diethyl phosphite using sodium dithionite through reduction and followed by Kabachnik–Fields reaction under metal-free conditions is reported. The major ad
Magnetic nanoparticles coated by acidic functionalized poly(amidoamine) dendrimer: Effective acidic organocatalyst
Pourjavadi, Ali,Hosseini, Seyed Hassan,Hosseini, Seyedeh Talieh,Aghayeemeibody, Seyyed Alireza
, p. 86 - 89 (2013/01/14)
A novel magnetic Br?nsted acid catalyst was synthesized based on growing poly(amidoamine) dendrimers on the surface of magnetic nanoparticles. After the dendronizing process, the MNP coated PAMAM was functionalized by chlorosulfuric acid to form an acid catalyst. Because of dendrimer coating of MNPs, catalyst shows good loading level of acidic groups on the surface. Also zwitterion nature of catalyst surface improves the catalytic activity. This new catalyst is proven to be highly effective in the synthesis of α-aminophosphonate compounds in a green way.
Cd(ClO4)2·xH2O as a novel catalyst for the synthesis of α-aminophosphonates under solvent-free conditions
Dindulkar, Someshwar D.,Reddy, Mudumala Veeranarayana,Jeong, Yeon Tae
experimental part, p. 114 - 117 (2012/03/26)
In this paper, we report cadmium perchlorate hydrate to be an novel, expeditious catalyst for the three-component one-pot reaction of an amine, an aldehyde and a H-phosphonate diesters in open air without any solvent, leads to α-aminophosphonates in excellent yields. To the best of our knowledge this finding is the first example of a cadmium perchlorate hydrate catalyzed Kabachnik-Fields reaction.
Titanocene dichloride as an efficient catalyst for one-pot synthesis of α-aminophosphonates
Niu, Hong-Ying,Li, Hui-Juan,Li, Jian-Ping,Huang, Yu,Mao, Run-Ze,Li, De-Yang,Qu, Gui-Rong,Guo, Hai-Ming
experimental part, p. 674 - 681 (2012/05/20)
Commercially available titanocene dichloride was firstly used as an extremely efficient catalyst for a three-component one-pot reaction of an amine, an aldehyde (ketone), and a dialkyl phosphite to form α-aminophosphonates under solvent-free conditions at
