253797-06-7Relevant academic research and scientific papers
General approach to the synthesis of symmetrical 1,3,2-diazaphosphocanes
Zavalishina, Alexandra I.,Orzhekovskaya, Elena I.,Selezneva, Natalja M.,Vasyanina, Larisa K.,Belsky, Vitaly K.,Nifantyev, Eduard E.
, p. 205 - 211 (2000)
Synthesis of eight-membered phosphorus-nitrogen heterocycles has been performed by phosphocyclization of the corresponding diamines using different derivatives of phosphorous acid. The structures of diazaphosphocanes were supported by elemental analysis; 1H, 13C, and 31P NMR spectroscopy; and x-ray diffraction analysis.
Higher 1,3,2-diazaphosphacyclanes: V. Synthesis, structure, and chemical features of 4,5 ;7,8-dibenzo-1,3,2-diazaphosphocanes
Nifant'ev,Zavalishina,Orzhekovskaya,Selezneva,Vasyanina,Vorontsov,Stash,Bel'skii
, p. 193 - 206 (2007/10/03)
A procedure was developed for preparing 4,5; 7,8-dibenzo-1,3,2-diazaphosphocanes containing trivalent and pentavalent phosphorus atoms. The structure of the compounds was determined by NMR spectroscopy and single crystal X-ray diffraction. The conformational transitions of the diazaphosphocanes in solution were analyzed. First data were obtained on transformations of the obtained eight-membered heterocycles.
