THE SYNTHESIS AND STRUCTURE OF P(III)PHOSPHORYLATED 2-AMINOPYRROLINES

A series of derivatives of 2-aminopyrroline (2-iminopyrrolidine) and n eopentylene-, pyrocatechol-phosphorous and diisopropylphosphinous acid s 5,11-13,17,19 has been synthesized. It was established that P(III)-p hosphorylated 2-aminopyrrolines have different structures depending on nature of substituent at the exocyclic N atom: with R=Me phosphite 11 is preferably in aminopyrroline form A, with R=Ph phosphite 17 is in the iminopyrrolidine form B. The structure of the obtained compounds w as studied by means of H-1, C-13, N-15 and P-31 NMR spectroscopy.