Synthesis, characterization and catalytic properties of magnetic nanoparticle supported guanidine in base catalyzed synthesis of α-hydroxyphosphonates and α-acetoxyphosphonates
作者:Amin Rostami、Bahareh Atashkar、Darush Moradi
DOI:10.1016/j.apcata.2013.07.001
日期:2013.10
Magnetic nanoparticle Fe3O4-immobilized guanidine (MNPs-Guanidine) as a novel magnetically interphase nanocatalyst was synthesized and characterized. MNPs-Guanidine catalyzed the synthesis of alpha-hydroxyphosphonates from aldehydes and dimethyl phosphite in solvent-free condition at 80 degrees C. The synthesis of alpha-acetoxyphosphonates through a one-pot reaction of aldehydes, dimethyl phosphite and acetic anhydride was also achieved using this catalyst in PEG at room temperature. The catalyst was recycled up to 10 times with little loss of activity. (C) 2013 Elsevier B.V. All rights reserved.
An efficient and green method to prepare bis-α-hydroxy phosphonates using triethylamine as catalyst
作者:Zehuai Mou、Yinjun Wang、Xi Man
DOI:10.1080/10426507.2020.1825435
日期:2021.2.1
(2021). An efficient and green method to prepare bis-α-hydroxy phosphonates using triethylamine as catalyst. Phosphorus, Sulfur, and Silicon and the Related Elements: Vol. 196, No. 2, pp. 195-199.