Synthesis and Characterization of Some Novel Phosphorylated 4‐Oxo‐2‐phenylquinazolines

Some novel phosphines, aminophosphines and their oxides, and derived phosphorus acids bearing 4‐oxo ‐ 2‐phenylquinazolin‐3‐yl moiety were synthesized. The methodology depended on the reaction of each 2‐phenylquinazolin‐4(3H)‐one ( 1 ) and 3‐amino‐2‐phenyl‐quinazolin‐4(3H)‐one ( 2 ) with (Ph)₂PCl, PhPCl₂, and PhP (O)Cl₂ in different ratios. The synthesized compounds were characterized by elemental analysis and spectral tools.