TERTIO-BUTYLIC DERIVATIVES OF BENZYLIDENECAMPHOR, PROCESS FOR THEIR PREPARATION, THEIR USE AS ANTI-OXIDANTS, AND COSMETIC AND PHARMACEUTIC COMPOSITIONS CONTAINING THEM

摘要

abbreviated descriptionthe invention relates to new derivatives ofbenzylidene camphor according to the formula:(i)in which r is a hydrogen atom or a resttert. - butyl ether, alkyl or alkoxy, r1 is a c1 is c8.r2 and r3 represent a hydrogen atom or a radical.oh, provided that at least one of the radicals r2and, r3 is a hydroxyl radical. the compounds.formula (i) are useful as antioxidants, filtersbroadband solar and drugs for the treatmentprevention of skin allergies and inflammation andfor the prevention of certain cancers. in addition to theirgood filtering properties and anti oxidants.compounds according to the invention have an excellentcharacter, as well as a good stability of fat soluble.thermlque and photochemistry.