A newmethod of alkylene phosphonate preparation has been elaborated, based on the reaction of the corresponding cyclic ethers and phosphonic acid in the presence of acetic anhydride.
基于相应的环醚与膦酸在乙酸酐存在下的反应,详细阐述了一种制备亚烷基膦酸酯的新方法。
SYNTHESIS OF CYCLIC PHOSPHOROUS ACID ESTERS BY TRANSESTERIFICATION
作者:Alexis A. Oswald
DOI:10.1139/v59-220
日期:1959.9.1
Five- and six-membered cyclic phosphorous acid esters were synthesized by transesterification of phosphites with 1,2- and 1,3-glycols: Diethyl hydrogen phosphite was transesterified to give cyclic hydrogen phosphites. Partial transesterification of tris-2-chloroethyl phosphite resulted in cyclic 2-chloroethyl phosphites.
Novel routes to aminophosphonic acids: Interaction of dimethyl H-phosphonate with hydroxyalkyl carbamates
作者:K. Troev、N. Koseva、G. Hägele
DOI:10.1002/hc.20404
日期:2008.3
It was found that the reaction of dimethyl H-phosphonate (1) with 2-hydroxyalkyl-N-2′-hydroxyalkyl carbamates at 135°C includes several chemical reaction steps: (i) chemical transformations of 1-methyl-2-hydroxyethyl-N-2′-hydroxyethyl carbamate (2) and 2-methyl-2-hydroxyethyl-N-2′-hydroxyethyl carbamate (3); (ii) transesterification of dimethyl H-phosphonate with 2 and 3, and with secondary hydroxyl-containing
Cyclic organophosphorus compounds. I. Synthesis and infrared spectral studies of cyclic hydrogen phosphites and thiophosphites
作者:A. Zwierzak
DOI:10.1139/v67-411
日期:1967.11.1
A general synthetic procedure leading to cyclic hydrogen phosphites has been devised. The effect of solvent on the P==O and P—H infrared stretching modes of cyclic hydrogen phosphites and thiophosphites has been studied. It is concluded that association of cyclic hydrogen phosphites is attributable to dipole–dipole interactions rather than to hydrogen bonding.