Spiro-indoline-oxazine photochromic and photosensitising characteristics and the process for their preparation.

NEW COMPOUNDS OF THE CLASS spiro indoline-oxazine POSSESS photochromatic characteristics and FOTOSENSILIZADORAS THAT ARE DEFINED BY THE FORMULA GENERAL (I): wherein the substituents R, R RAISED A 1-R RAISED TO 7 AND ARE AS DEFINED IN THE DESCRIPTION. It DESCRIBED THE PROCESS FOR PREPARING COMPOUNDS AND THEIR USE AS AGENTS Photochromic capable of conferring photochromatic characteristics ARTICLES IN WHICH ARE INCORPORATED AS AGENTS AND FOTOSENSILIZADORES.