Polycyclic derivatives of hexacoordinated phosphorus atom with transannular N→P bond

Phosphorylation of optically pure salicylal-1,2-diphenylethanediamine with alkylene chlorophosphites

“…The reaction of salicylalethylenediimine with 2-chloro-1,3,2-dioxaphospholane was found to be a cascade process, resulting in the framework derivatives of hexacoordinated phosphorus atom involving the intramolecular transannular N→P bond (by X-ray data) [1]. It is important that the reaction is highly stereoselective and gives rise to a single diastereomer.…”