Abstract
Products of the reaction of 2-[(hydroxyimino)methyl]-1,3-dimethylimidazolium iodide with diethyl 4-nitrophenyl phosphate in alkaline medium have been identified by electronic spectroscopy, one-(1H, 31P, 13C) and two-dimensional (1H–1H COSY, 1H–31P HMBC) NMR techniques, and NMR titration. 2-[(Hydroxyimino)-methyl]-1,3-dimethylimidazolium iodide has been found to act as nucleophile which is likely to be converted into 2-cyano-1,3-dimethylimidazolium. The other products are 4-nitrophenol and diethyl hydrogen phosphate. Other reaction paths, such as nucleophilic catalysis of the hydrolysis of diethyl 4-nitrophenyl phosphate by 2-[(hydroxyimino)methyl]-1,3-dimethylimidazolium iodide and formation of a stable phosphorylated product, have been ruled out.
Published Version
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