Photosensitive chloro or bromo azidonaphthalenes - prepd by halogenation of 8-azido-1-naphthylamine and opt amino azido conver

摘要

Title cpds of formula: (where Y is N3 or NH2 and both X are Cl or both Br) are photosensitive and are used in dry photoimaging processes, the images produced having enhanced neutrality and optical density. The cpds may be prepd by chlorination or bromination of 8-azido-1-naphthylamine and opt. conversion of the amine gp to an azide gp.