This invention relates to aliphatic carbonyl compounds of formula I wherein, their manufacture and their use in fragrance compositions. R1 to R4, X and Y have the meaning as described in the specification
本发明涉及公式I的脂肪族羰基化合物,以及它们的制造和在
香料组合物中的使用。其中,R1至R4、X和Y的含义如规范所述。