The Synthesis and Herbicidal Evaluation of Fluorine-Containing Phenoxyacetoxyalkylphosphonate Derivatives
作者:Ting Chen、Ping Shen、Yanjun Li、Hongwu He
DOI:10.1080/10426500600614253
日期:2006.9.1
Compound 5l exhibited notable activity. Results showed that by introducing a fluorine moiety to the parent structure of phenoxyacetoxyalkylphosphonates, a series of new compounds with satisfactory herbicidalactivity could be synthesized. A reasonable combination of a fluorine moiety and other substituents on the benzene ring had a great influence on the herbicidalactivity.
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.
JACQUES, J.;LECLERCQ, M.;BRIENNE, M. -J., TETRAHEDRON, 1981, 37, N 9, 1727-1733