Bicyclic Organophosphorus Amides. Nucleophilic Cleavage of 1-Oxo-2,3-benzo-10-phenyl-4,7,10-triaza-1λ⁵-phosphabicyclo[5.3.0]decane and its p-Anisyl Analogues

Abstract

Methanolysis of the title substrates leads to different products depending on the conditions: in the presence of HCl both P–N bonds are broken yielding a non-cyclic phosphonic diester while the MeO^– ion reacts selectively breaking the P–N(Ar) bond and yielding a cyclic, seven-membered phosphonic amidoester.

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