The synthesis of dialkoxyphosphorylcarboxamides, which is difficult to monitor by TLC, was investigated by ESI-MS and ESI-MSn. Their fragmentation pathways were rationalized and supported by tandem mass spectrometry. The characteristic ions in ESI-MS are useful for the structural determination of phosphorylcarboxamides.
YANKOV, L. K.;KOEV, I. G., DOKL. BOLG. AN, 42,(1989) N2, S. 75-77