Abstract
O,O-bis(2-benzylideneaminophenyl) arylphosphonites undergo a spontaneous rearrangement into spirophosphoranes, 1-aryl-6,7-diphenyl-3,4:9,10-dibenzo-2,11-dioxa-5,8-diaza-1-phosphatricyclo[6.3.0.01,5]undeca-3,9-dienes.
GRAPHICAL ABSTRACT
![](/cms/asset/c8431c72-44d8-492c-b95a-bd57785f8d97/gpss_a_743141_o_uf0001.gif)
Acknowledgments
This study was supported by the Russian Foundation for Basic Research (grant no.10-03-00525).