N1-Arylation of 1,4-Benzodiazepine-2-ones with Diaryliodonium Salts

A library of N 1-arylated 5-phenyl-1,3-dihydro-2 H -1,4-benzodiazepin-2-ones has been synthesized starting with unsymmetrical diaryliodonium salts using aqueous ammonia as a base. This can also be applied to a similar 1,3,4-benzotriazepin-2-one derivative.