申请人:Givaudan SA
公开号:US10577298B2
公开(公告)日:2020-03-03
The present invention refers to aryl beta diketones of the formula (I)
wherein Y, R1, R2 and R3 have the meaning
R1 is selected from the group consisting of hydrogen, C1-C4 alkyl, hydroxyl, methoxy, CF3 and F;
R2 is selected from the group consisting of methyl and ethyl;
R3 is selected from the group consisting of methyl and ethyl; and
Y is a bivalent residue selected from the group consisting of
—C(O)—; —CH2═CH2—C(O)—; —CRIRII—C(O)—, wherein RI and RII are independently selected from hydrogen and methyl; and —CHRIII—CHRIV—C(O)—, wherein RIII and RIV are independently selected from hydrogen and methyl with the proviso, that RIII═RIV are hydrogen or either RIII or RIV is methyl. The invention further refers to fragrance compositions and fragranced articles comprising them.
本发明涉及式 (I) 的芳基 beta 二酮
其中 Y、R1、R2 和 R3 具有如下含义
R1 选自由氢、C1-C4 烷基、羟基、甲氧基、CF3 和 F 组成的组;
R2 选自由甲基和乙基组成的组;
R3 选自甲基和乙基组成的组;以及
Y 是二价残基,选自由以下组成的组
-C(O)-;-CH2═CH2-C(O)-;-CRIRII-C(O)-,其中RI和RII独立地选自氢和甲基;和-CHRIII-CHRIV-C(O)-,其中RIII和RIV独立地选自氢和甲基,但RIII═RIV为氢或RIII或RIV为甲基。本发明还涉及香料组合物和由其组成的芳香物品。