| 摘要 |
This invention provides fragrance compositions comprising a carrier solution used for cleaning purposes or for topical administration and nonfragrant photoresponsive agents that are capable of undergoing intramolecular photorearrangements to release a fragrance. The photoresponsive fragrance composition may comprise the prephotorearrangement first fragrance agent, the photorearranged and released fragrance agent, a combination of the first and second agents, or any of the above in combination with a known fragrance agent. R1 is a fragrance or molecule that imparts a fragance. Preferably, R1 is attached via a carboxyl, phosphate, sulfate, thiol, or amine (--NR1). More preferably, R1 is -OC(O)OR12., where R12 is a fragance or molecule that imparts a fragance, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are each hydrogen, alkyl, aryl (such as phenyl), alkoly, substituted alkoly, or halide. At least one of R2 or R6 is hydrogen. At least one of R2, R3, R4, R5 and R6 is hydroxy or substituted alkoxy. |
