Phosphoric N-phenylamides undergo lithiation-induced rearrangement involving the fission of the PN bond and the migration of phosphorus to the ortho aromatic carbon atom. In the 0- phenyl N-phenylamido esters the migration to the phenolic ring preceeds that occurring at the aniline moiety. The reaction is illustrated by the preparation of the ortho-substituted aromatic phosphonic and phosphinic esters, as well as tertiary phosphine oxides. NMR ( ...
