Application of the Kabachnik-Fields and Moedritzer-Irani Procedures for the Preparation of Bis(phosphonomethyl)amino- and Bis[(dimethoxyphosphoryl)-methyl]amino-Terminated Poly(ethylene glycol)

[摘要]：Bis[(dimethoxyphosphoryl)methyl)]amino- and bis(phosphonomethyl) amino-terminated samples of poly(ethylene glycol) (PEG) were prepared from commercially available PEG in fair-to-good yields by means of adaptations of the Moedritzer-Irani and Kabachnik-Fields procedures, respectively. An alternative route involving silylation of phosphonates and subsequent methanolysis to afford phosphonic acid groups was also examined.

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