摘要:
Described are merocyanine derivatives of formula wherein R2 is hydrogen; C1-C22alkyl; cyclo-C3-C8alkyl; unsubstituted or C1-C6alkyl- or C1-C6alkoxy-substituted C6-C20aryl; a cyano group; or R1 and R2 together with the nitrogen atom linking them form a —(CH2)m— ring which is optionally interrupted by —O— or by —NR7—; R4 is a cyano group; or -Q1-R5; Q1 is —COO—; —CONH—; —CO—; —SO2—; or —CONR6—; R5 is C1-C22alkyl; cyclo-C3-C8alkyl; or unsubstituted or C1-C6alkyl-substituted C6-C20aryl; R6 is hydrogen; C1-C22alkyl; cyclo-C3-C8alkyl; unsubstituted or C1-C6alkyl- or C1-C6alkoxy-substituted C6-C20aryl; R7 is hydrogen; C1-C22alkyl; cyclo-C3-C8alkyl; unsubstituted or C1-C6alkyl- or C1-C6alkoxy-substituted C6-C20aryl; the cyclohexene radical C is not substituted or substituted by one or more C1-C5alkyl; m is from 3 to 7; n is from 2 to 4; and o is from 2 to 4. Said merocyanine derivatives are useful in protecting human and animal hair and skin from UV radiation and to cosmetic compositions comprising said derivatives.
摘要:
Described are merocyanine derivatives of formula (1a) or (1b) wherein n and o are integers from 2 to 4 and aminocyclohexenone intermediates. They are used in protecting human and animal hair and skin from UV radiation.
摘要:
Disclosed is the use of an insoluble or sparingly soluble micronized substance class which is not a cosmetic UV absorber and which is dispersed in the oil- or water-phase of a cosmetic or dermatological composition for the enhancement of light protecting action of this cosmetic or dermatological composition comprising at least one cosmetic UV filter which is soluble in the water- or oil-phase. The cosmetic preparation according to the invention shows a remarkable increase in SPF.
摘要:
Disclosed is the use of an aqueous dispersion comprising (a) a micronized sparingly soluble organic compound which has a UV-Vis spectrum with a maximum from 380 to 420 nm; and (b) an anionic dispersing agent for protecting the human skin from browning and skin aging.
摘要:
Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.
摘要:
Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein R1 and R2 independently from each other are hydrogen; C1-C20alkenyl; C3-C10cycloalkyl; or R1 and R2 together with the linking nitrogen atom form a 5- 6-membered heterocyclic ring; R3, R4 and R5 independently from each other are C1-C4alkyl; C1-C4alkoxy; or a radical of formula (1a) R6 is C1-C6alkyl; and A is a straight-chain or branched C3-C6alkylene, which is optionally interrupted by one or more *—O—*, or *—O—(CO)—* groups; and m is 0; or a number from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.
摘要:
Disclosed is the use of the compounds of formula wherein Q is —OH; —OR7; —NH2; —NHR7; —NR7R8; or —N═R9; T is —COR5; —CN; or —SO2—(C6-C12)aryl; R1 is hydrogen; —OR7, —SR7; —NHR7; —NR7R8; C1-C22alkyl; C2-C12Alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12heteroalkyl, C2-C11heteroaralkyl; C6-C10aryl; or C1-C9heteroaryl; R2 and R3 independently from each other are C1-C22alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl, C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12heteroalkyl; C3-C12cycloheteroalkyl; C2-C11heteroaralkyl, C6-C10aryl; or C1-C9heteroaryl; R4 is cyano; COR7, COOR7; CONH2; CONHR7; CONR7R8; SO2(C6-C12)aryl, C2-C12alk-1 -enyl; C3-C12cycloalk-1-enyl; C2-C12alk-1-inyl; C2-C12heteroalkyl, C3-C5heterocycloalkyl, C6-C10aryl; or C1-C9heteroaryl; R5 is —COR7; —COOR7; —OR7; —SR7, —NHR7, —NR7R8; C1-C22alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12alkylphenyl; C1-C12alkoxy-C6-C10aryl; C1-C12heteroalkyl; C2-C11heteroaralkyl; C3-C12cycloheteroalkyl; C6-C10aryl; C1-C12alkoxy-C6-C10aryl or C1-C9heteroaryl; R6, R7 and R8 independently from each other are hydrogen; C1-C22alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12heteroalkyl; C2-C11heteroaralkyl; C6-C10aryl; o-C6-C10aryl; or C1-C9heteroaryl; R9 is a (C1-C6)alkylidene radical; or R1 and R2, R1 and Q, R1 and R4, R1 and R6, R2 and R3, R3 and Q, R6 and Q, T and Q, each independently, are linked together, so that 1, 2, 3 or 4 carbocyclic or N, O and/or S-heterocyclic rings are formed, wherein each of them, independently from each other, may be condensed with an aromatic or heteroaromatic ring, and/or more N-, O- and/or S-heterocycic rings, and each N atom in a N-heterocyclic ring may be substituted by C1-C22alkyl; and n is a number from 1 to 4; for protecting of human hair and skin against the damaging effect of UV radiation.
摘要:
The Use, as a UV filter, of a compound of formula R1 and R2 are each independently of the other hydrogen; unsubstituted or halo-, amino-, mono- or di-C1-C5alkylamino-, cyano- or C1-C5alkoxy-substituted C1-C22alkyl, C5-C10cycloalkyl, carboxy-C1-C22alkyl, carboxy-C6-C10aryl, C6-C10aryl, C6-C10aryl-C1-C5alkyl; carbamoyl; or sulfamoyl; or R1 and R2, together with the nitrogen atom linking them, form a 5- to 7-membered heterocyclic radical; and R3 is hydrogen; or C1-C22alkyl; and R4 is hydrogen; hydroxy; C1-C22alkyl; or C1-C22alkoxy; is described. The compounds of formula (1) are suitable especially as UV filters in cosmetic preparations.