摘要:
The invention relates to the use of compounds of the formula I in which X is the divalent radical of oxygen, a carbonyl radical, optionally aliphatically substituted imino or the radical ═CR9R10, Y is a carbonyl group or the radical ═CR9R10, R1 and R2 are identical or different electron-withdrawing radicals, chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl, optionally substituted aminocarbonyl, alkyl- or arylsulfinyl, alkyl- or arylsulfonyl and optionally substituted aminosulfonyl, R3 is a hydrogen atom, a cyano, hydroxyl, carboxyl or aminocarbonyl group or a C5-C20-aryl radical or C1-C20-alkylradical optionally bonded via an oxygen bridge, an aminocarbonyl bridge or oxycarbonyl bridge, R4 is a hydrogen atom, a hydroxyl group, an amino group, or a C5-C20-aryl radical or C1-C20-alkyl radical optionally bonded via an oxygen bridge, and R5 to R10 independently of one another are hydrogen or C1-C20-alkyl radicals and where in addition R7 and R8 together with the chain carbon atom are a carbonyl group, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin and human hair from solar rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
Use of amino-substituted hydroxybenzophenones of the formula I in which the variables have the meanings explained in the description, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
The invention relates to the use of substituted, dimeric .alpha.-alkylstyrene derivatives of the formula I ##STR1## in which the substituents are as defined in the description, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin or human hair against solar rays, alone or together with compounds which absorb in the UV region and which are known per se for cosmetic and pharmaceutical preparations.
摘要:
The invention relates to the use of compounds of the formula I in which X is the divalent radical of oxygen, a carbonyl radical, optionally aliphatically substituted imino or the radical ═CR9R10, Y is a carbonyl group or the radical ═CR9R10, R1 and R2 are identical or different electron-withdrawing radicals, chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl, optionally substituted aminocarbonyl, alkyl- or arylsulfinyl, alkyl- or arylsulfonyl and optionally substituted aminosulfonyl, R3 is a hydrogen atom, a cyano, hydroxyl, carboxyl or aminocarbonyl group or a C5-C20-aryl radical or C1-C20-alkylradical optionally bonded via an oxygen bridge, an aminocarbonyl bridge or oxycarbonyl bridge, R4 is a hydrogen atom, a hydroxyl group, an amino group, or a C5-C20-aryl radical or C1-C20-alkyl radical optionally bonded via an oxygen bridge, and R5 to R10 independently of one another are hydrogen or C1-C20-alkyl radicals and where in addition R7 and R8 together with the chain carbon atom are a carbonyl group, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin and human hair from solar rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
The use of compounds of the formula I in which R1 and R2 are identical or different, electron-withdrawing radicals chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl and optionally substituted aminocarbonyl, R3 is a hydrogen atom, a C1-C20-alkyl radical or a C3-C20-cycloalkyl radical or a radical of the formula —CH2-CH2—SO3—M+, where M+ is a cation, X is the divalent radical of oxygen, sulfur or the radical where R3 is as defined above, Z is the divalent radical of the formula II or III, which forms a fused system with the radical of the formula I where R4 can be bonded one or more times to the benzylidene ring I or naphthylidene ring II, and is hydrogen, alkyl, cycloalkyl, alkyloxy, cycloalkyloxy, alkoxycarbonyl, mono- or dialkylaminocarbonyl, alkylamino, dialkylamino, each having up to 20 carbon atoms, and also cyano, amino and SO3—M+, where M+ is a cation, as photostable UV filters in cosmetic and pharmaceutical preparations to protect human skin and human hair against solar rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
The use of compounds of the formula I in which R1 and R2 are identical or different, electron-withdrawing radicals chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl and optionally substituted aminocarbonyl, R3 is a hydrogen atom, a C1-C20-alkyl radical or a C3-C20-cycloalkyl radical or a radical of the formula —CH2—CH2—SO3—M+, where M+ is a cation, X is the divalent radical of oxygen, sulfur or the radical where R3 is as defined above, is the divalent radical of the formula II or III, which forms a fused system with the radical of the formula I where R4 can be bonded one or more times to the benzylidene ring I or naphthylidene ring II, and is hydrogen, alkyl, cycloalkyl, alkyloxy, cycloalkyloxy, alkoxycarbonyl, mono- or dialkylaminocarbonyl, alkylamino, dialkylamino, each having up to 20 carbon atoms, and also cyano, amino and SO3—M+, where M+ is a cation, as photostable UV filters in cosmetic and pharmaceutical preparations to protect human skin and human hair against solar rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
4,4-Diarylbutadienes of the formula I, where the variables have the meanings explained in the description, are used as photostable UV filters in cosmetic and pharmaceutical preparations to protect the human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
摘要:
A method of using compounds of formula I ##STR1## in which the C.dbd.C double bond is present in E and/or Z configuration and the variables have the following meanings:R.sup.1 denotes COOR.sup.5, COR.sup.5, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.5).dbd.O, O.dbd.S(--OR.sup.5).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.2 denotes COOR.sup.6, COR.sup.6, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.6).dbd.O, O.dbd.S(--OR.sup.6).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.3 denotes hydrogen, an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radical having in each case up to 18 carbon atoms;R.sup.4 denotes an optionally substituted aromatic or heteroaromatic radical containing from 5 to 12 ring atoms;R.sup.5 toR.sup.8 independently denote hydrogen, an open-chain or branched-chain aliphatic, araliphatic, cycloaliphatic or optionally substituted aromatic radical containing in each case up to 18 carbon atoms,where the variables R.sup.3 to R.sup.8 may also form, together with the carbon atoms to which they are attached, a 5-membered or 6-membered ring, which may be anellated if desired,as UV filters, particularly UV-A filters, in cosmetic and pharmaceutical formulations for the protection of the human skin or human hair from solar radiation, alone or together with compounds known per se in cosmetic and pharmaceutical formulations and capable of absorbing radiation in the UV range.
摘要:
The use of cholesteric, liquid-crystalline compositions comprisinga) at least one chiral, liquid-crystalline, polymerizable monomer of the formula I,[Z.sup.1 -Y.sup.1 -(A.sup.1).sub.m -Y.sup.2 -M.sup.1 -Y.sup.3 -].sub.n -XI by means of which a cholesteric, liquid-crystalline phase with a pitch of less than 450 nm can be obtained, orb) a mixture ofb.sub.1) at least one achiral, liquid-crystalline, polymerizable monomer of the formula IIZ.sup.2 -Y.sup.4 -(A.sup.2)-.sub.o -Y.sup.5 -M.sup.2 -Y.sup.6 -(A.sup.3).sub.p -Y.sup.7 -Z.sup.3 lI andb.sub.2) at least one chiral additive by means of which a cholesteric, liquid-crystalline phase with a pitch of less than 450 nm can be obtained,where the variables are as defined in the description, as UV filters in cosmetic and pharmaceutical preparations for protecting the human skin or human hair against sunlight, alone or together with UV-absorbent compounds which are known per se for cosmetic and pharmaceutical preparations.
摘要:
A cosmetic preparation which comprises a sunscreen agent for protecting the human epidermis against UV light in the range from 280 to 400 nm, which comprises, in a cosmetically suitable carrier, alone or together with compounds which absorb in the UV region and are known for cosmetic preparations, as photostable UV-A filters, effective amounts of compounds of the formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are hydrogen or aliphatic or cycloaliphatic radicals each having up to 18 carbon atoms, it being possible for any two of the radicals R.sup.1, R.sup.2 and R.sup.3 together to form a 5- or 6-membered ring, and R.sup.4 and R.sup.5 are an unsubstituted or substituted aromatic or heteroaromatic radical having 5 to 12 ring atoms, and R.sup.5 can additionally be hydrogen.