NMR ¹H, ¹³C, ³¹P Interpretation of Phosphorylotropic Rearrangement in N,N′-(Bis)(Diizopropoxyphosphorylamidocarbonyl)-1,10-Diaza-18-Crown-6-Ester in DMSO Solution

Abstract

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. Phosphorylotropic rearrangement in N,N′-(bis)(diizopropoxyphosphorylamidocarbonyl)-1,10-diaza-18-crown-6-ester dissolved in DMSO was investigated by 1H, 13C, and 31P NMR spectroscopy. The transition from the amide form to the phosphorylotropic form was shown to cause a simultaneous signal modification of the NMR spectra of three mentioned isotopes in all structural elements of the molecule.