Alcoholic or aqueous-alcoholic compositions containing natural essences and benzylidene-camphor derivatives

A process for reducing the phototoxicity of an alcoholic or aqueous-alcoholic composition in a form selected from the group consisting of a perfume, a toilet water, an eau de cologne, a pre-shave gel, a pre-shave lotion, an after-shave gel and an after-shave lotion, said composition comprising a natural essence containing a phototoxic dose of furocoumarin, comprising incorporating into said composition an amount of about 0.01 to 2% by weight of at least one benzylidenecamphor derivative filtering out UV-A radiation and reducing the phototoxicity of said furocoumarin selected from the group consisting of:

• the 3-p-oxybenzylidenebornan-2-ones of the formula:
• ##STR53## in which:
• Z.sub.1 and Z'.sub.1 respectively denote a hydrogen atom, a radical SO.sub.3 H or a salt of this sulphonic acid with an inorganic or organic base, at least one of the two radicals Z.sub.1 or Z'.sub.1 representing a hydrogen atom;
• R.sub.1 denotes a hydrogen atom, an optionally branched alkyl radical containing 2 to 18 carbon atoms, an alkenyl radical containing 3 to 18 carbon atoms or a radical ##STR54## in which R denotes H, an alkyl radical containing 1 to 8 carbon atoms, --(CH.sub.2).sub.3 --SO.sub.3 H or a salt of this acid with an organic or inorganic base, or alternatively a divalent radical --(CH.sub.2).sub.m or --CH.sub.2 --CHOH--CH.sub.2, m having the values 1 to 10 and n having the values 1 to 6, and R.sub.3 and R.sub.4 each representing a hydrogen atom or an optionally branched or hydroxylated alkyl radical, or together forming an aminoaliphatic heterocycle with the nitrogen atom;
• R.sub.2 denotes a hydrogen atom, an alkoxy radical containing 1 to 4 carbon atoms or a divalent radical --0-- joined to the radical R.sub.1 in the case where the latter is also divalent;
• and q denotes 1 to 2, it being understood that if q has the value 2, R.sub.1 is a divalent radical, and that if R.sub.1 denotes hydrogen, R.sub.2 also denotes hydrogen;
• moreover, if R.sub.2 denotes a alkoxy, R.sub.1 can also denote methyl;
• the benzylidenecamphor derivatives of the formula:
• ##STR55## in which:
• R.sub.1 denotes a hydrogen atom or a radical --SO.sub.3.sup..crclbar. M.sup..sym., in which M denotes a hydrogen atom, an alkali metal or a group .sup..sym. N(R.sub.3).sub.4, R.sub.3 denoting a hydrogen atom or a C.sub.1 to C.sub.4 alkyl or hydroxyalkyl radical;
• n=0, that is to say R.sub.2 denotes a hydrogen atom;
• and Z represents a group ##STR56## in which R.sub.4 has the same meanings as R.sub.1 and can be equal to R.sub.1 or different from R.sub.1, or alternatively a group ##STR57## in which R.sub.5 denotes a hydrogen atom, a C.sub.1 to C.sub.4 alkyl radical, an aryl radical optionally substituted by halogen atoms or by C.sub.1 to C.sub.4 alkyl or alkoxy groups, or a group ##STR58## and R.sub.6 denotes a group --COOR.sub.8, R.sub.7 and R.sub.8, which are identical or different, being alkyl, alkenyl, cyloalkyl or aralkyl radicals containing at most 20 carbon atoms, which are optionally substituted by hydroxyl, alkoxy, or amine, and R.sub.9 and R.sub.10, which are identical or different, denoting a hydrogen atom or alkyl, alkenyl, cycloalkyl or aralkyl radicals containing at most 20 carbon atoms, which are optionally substituted by hydroxyl, alkoxy, or amine or alternatively if R.sub.5 denotes a hydrogen atom or an alkyl or optionally substituted aryl radical, R.sub.6 can also represent a radical --COO.sup.- M.sup.+, M being defined as above, the two methylidenecamphor radicals, on the one hand, and Z, on the other hand, being attached to the aromatic nucleus A in the para position relative to one another;
• the sulphonamides derived from 3-benzylidenecamphor of the formula:
• ##STR59## in which:
• X.sub.1 denotes the radical Y;
• X.sub.2 denotes the radical Z;
• and
• X.sub.3 denotes a hydrogen atom,
• Y denoting the group ##STR60## in which R.sub.1 denotes a hydrogen atom or a C.sub.1 -C.sub.4 alkyl or hydroxyalkyl radical and R.sub.2 denotes a hydrogen atom, a linear or branched alkyl or alkenyl radical or a cycloalkyl, aryl or aralkyl radical, it being possible for these various C.sub.1 -C.sub.20 radicals to be substituted by one or more hydroxyl, alkoxy or dialkylamino groups, it being impossible for R.sub.1 and R.sub.2 simultaneously to denote a hydrogen atom, and Z denoting one of the following groups:
• ##STR61## in which Y has the above-mentioned meaning, or Z.sub.2 = ##STR62##