A process for the preparation of a novel antiozonant and antioxidant, based on functionalized benzotriazole UV absorbers, and the process for the preparation thereof having a general Formula I: ##STR00001## wherein R.sub.1 and R.sub.2 are C.sub.1 to C.sub.8 linear or branched alkyl; R.sub.3 is hydrogen, tert-butyl; X.sub.1 is select the group consisting of hydrogen, halogen, tert-butyl and C.sub.1 to C.sub.12 alkoxy.