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    • 2. 发明授权
    • Fragrance precursors
    • 香料前体
    • US06492563B2
    • 2002-12-10
    • US09829777
    • 2001-04-10
    • Markus GautschiCaroline PlessisSamuel Derrer
    • Markus GautschiCaroline PlessisSamuel Derrer
    • C07C49115
    • C11D3/507C07C45/64C07C45/673C07C45/71C07C49/84C07C49/83
    • The present invention is a fragrance precursor of formula I: for a fragrant ketone of formula II: and a fragrant ester of formula III: wherein, R1 to R5 represent independently H, —NO2, linear or branched C1-C6-alkyl, C1-C6-alkenyl, C1-C6-alkinyl or C1-C4-alkoxy, R1 and R2,R2 and R3, R3 and R4, and R4 and R5 may form together one or two aliphatic or aromatic rings, R6 and R7 are independently H, linear or branched C1-C6-alkyl-, C1-C6-alkenyl, C1-C6-alkinyl, and R8 and R9 are the residues of an acid R8-COOH and an alcohol R9OH respectively forming the fragrant ester of formula III. A method for providing an odor by admixing with a product a fragrance precursor as detailed above.
    • 本发明是式I的香料前体:对于式II的芳香酮和式III的芳香酯:其中R1至R5独立地表示H,-NO2,直链或支链C1-C6-烷基,C1- C 1 -C 6 - 烯基,C 1 -C 6 - 炔基或C 1 -C 4 - 烷氧基,R 1和R 2,R 2和R 3,R 3和R 4以及R 4和R 5可以一起形成一个或两个脂族或芳环,R 6和R 7独立地为H, 直链或支链C 1 -C 6 - 烷基 - ,C 1 -C 6 - 烯基,C 1 -C 6 - 炔基和R 8和R 9是分别形成式III芳香酯的酸性R8-COOH和醇R9OH的残基。 通过与产品混合来提供气味的方法,如上所述的香料前体。