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Reaction of the lithio-derivative with dialkyl cyanamides gives, instead of the expected 2-phosphorylacetamide, a rearranged N-phosphorylated amidine: Chem. Commun., 609 (1998):

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For synthetic applications of the lithio-derivatives of esters of methanephosphonic acid, see Dimethyl methylphosphonate, A14268.• Dialkylation has been used in the synthesis of cyclobutanephosphonates which are intermediates in the synthesis of 3-phosphonocyclobutyl amino acids: J. Chem. Soc., Perkin 1, 493 (1997).