O,O-diphenyl N-sulfonylbenzimidoylphosphonates, a novel type of C-phosphorylated imines
作者:Yu. V. Rassukana、A. A. Sinitsa、P. P. Onys’ko
DOI:10.1007/s11172-006-0171-9
日期:2005.11
A preparative method for the synthesis of first representatives of O,O-diphenyl N-sulfonylbenzimidoylphosphonates was proposed. The method involves oxidation of the corresponding α-(sulfonylamino)benzylphosphonates. The σ-constants of the N-sulfonylbenzimidoylphosphonate group were estimated by 19F NMR spectroscopy. The imidoylphosphonates obtained easily formed stable adducts at the C=N bond with
作者:N. V. Kolotilo、A. A. Sinitsa、Yu. V. Rassukanaya、P. P. Onys’ko
DOI:10.1134/s1070363206080068
日期:2006.8
A procedure for preparing N-sulfonyl- and N-phosphorylbenzimidoylphosphonates by oxidation of the corresponding alpha-(sulfonylamino)- and alpha-(phosphorylamino)benzylphosphonates was developed. The sigma constants of imidoylphosphonate groups were evaluated by F-19 NMR spectroscopy, and specific features of their electronic effects were considered. The reactions of the imidoylphosphonates obtained with O-, S-, P-, and N-nucleophiles were studied. The phosphonate-phosphoramidate rearrangement of alpha-aminobenzylidene-bisphosphonates was found.