| 摘要 |
The present invention provides compounds of formula IwhereinR1 and R3 are independently H or C1-3 alkyl, and R2 is H, C1-3 alkyl, methylene or ethylidene, with the proviso that R1 and R2 are not simultaneously H;n is 0 or 1; and<CUSTOM-CHARACTER FILE="US06410000-20020625-P00001.TIF" ALT="custom character" HE="20" WI="20" ID="CUSTOM-CHARACTER-00001"/> is a single or a double bond, wherein a maximum of two double bonds are present in the compound. Compounds of formula II are also provided: whereinA is selected from the group of CR4R5OH, CR4R5OC(O)R6, CO2R6, CN and C(O)R4;R1, R3, R4, and R5 are independently H or C1-3-alkyl;R2 is H, C1-3-alkyl, methylene, or ethylidene;R6 is H, C1-3 alkyl, C2-4 alkenyl, or alkinyl;n is 0 or 1; and<CUSTOM-CHARACTER FILE="US06410000-20020625-P00001.TIF" ALT="custom character" HE="20" WI="20" ID="CUSTOM-CHARACTER-00002"/> is a single or a double bond, wherein a maximum of two double bonds are present. Compositions containing compounds of formulae I and II, as well as methods for imparting fragrance to substrates using such compounds are also provided.
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