Benzylidene-camphors, processes for their preparation and cosmetic

Abstract

The invention provides compounds which are particularly valuable for use as the active ingredient in sun tan lotions and creams and the like. These compounds have the general formula: ##STR1## in which Y denotes hydrogen or the radical SO.sub.3 H or a salt thereof with an organic or inorganic base, and Z denotes the radical --CH.sub.2 Br or --CHBrBr or a radical Z' which denotes the radical --CH.sub.2 I, --CH.sub.2 R, --CHR'R', --CHO or --COOR', in which R denotes --NR.sub.1 R.sub.2, --N.sup.+ R.sub.1 R.sub.2 R.sub.3, --OR.sub.4, --OCOR.sub.5, --SR.sub.6, --CN, -COOR' or --SSO.sub.3 Na, in which R.sub.1 and R.sub.2 independently denote hydrogen, C.sub.1-18 alkyl or hydroxyalkyl, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, denote a heterocyclic ring, R.sub.3 denotes C.sub.1-4 alkyl or hydroxyalkyl or sulphonatopropyl, R.sub.4 denotes hydrogen, alkyl, polyoxyethylene, aryl which is optionally substituted, menthyl or dialkylaminoalkyl, R.sub.5 denotes alkyl, alkenyl, aryl or a 5 or 6 membered heterocyclic ring which is optionally aromatic, and R.sub.6 denotes hydrogen, alkyl, carboxyalkyl, aminoalkyl, hydroxyalkyl, aryl or 3-alanyl, R' denotes --OR'.sub.4 or --SR'.sub.6, in which R'.sub.4 and R'.sub.6 are as defined under R.sub.4 and R.sub.6, respectively, except for hydrogen, polyoxyethylene, hydroxyalkyl, 3-alanyl and aryl, and R' denotes hydrogen or alkyl, such that when R denotes N.sup.+ R.sub.1 R.sub.2 R.sub.3, R.sub.1 and R.sub.2 are not hydrogen and either R.sub.3 denotes sulphonatopropyl, or the compound is in the form of a salt with an anion, which is SO.sub.4 alkyl, SO.sub.3 aryl, SO.sub.3 alkyl or halogen or an inorganic or organic acid addition salt thereof when R denotes --NR.sub.1 R.sub.2.