Synthesis of Some New 1,3,2-Oxazaphosphinine, 1,3,2-Diazaphosphinine, Acyclic, and/or Cyclic α-Aminophosphonate Derivatives Containing the Chromone Moiety

Abstract

The synthesis of some new 1,3,2-oxazaphosphinine 18, 1,3,2-diazaphosphinine 19, acyclic, and cyclic α-aminophosphonate derivatives 3–17 containing the chromone moiety have been achieved via reaction of 3-(phenyliminomethyl)chromone (1), 3-(phenylaminomethylene)-2-hydroxychromanone (4), and/or 3-(phenylamino-methylene)-2-(phenylamino)chromanone (5) with diethyl phosphite, tris(2-chloroethyl)phosphite, and phenylphosphonic dichloride. Structures of the products were verified on the basis of their elemental analyses, IR, ¹H, and ³¹P NMR spectral data.

Keywords:

• α-Aminophosphonate
• chromone
• 1,3,2-diazaphosphinine
• 1,3,2-oxazaph-osphinine
• synthesis

Acknowledgments

The author is grateful to Prof. Kolio D. Troev and Dr. I. Krachieva, from Institute of Polymers, Bulgarian Academy of Science, Sofia, Bulgaria, for providing laboratory facilities. The financial support of this research through the grant of The Egyptian Ministry of Higher Education and Scientific Research (ParOwn Grant) is gratefully acknowledged as well.