申请人:Turin Luca
公开号:US20050119156A1
公开(公告)日:2005-06-02
Improved aromachemical derivatives, and fragrances and flavorings including the derivatives, that have a longer useful shelf life than the aromachemicals from which they can be derived, are disclosed. In particular, the derivatives maintain the fragrance characteristics of the aromachemicals, while lowering the allergic properties, increasing the stability, and/or increasing the odor intensity. Also disclosed are methods of making the derivatives, and articles of manufacture including the derivatives. In one embodiment, the derivatives are prepared by replacing one or more double bonds in citral with a thioether, cyclopropyl, oxirane, or thiirane group. The cyclopropane ring can be unsubstituted, or substituted with one or two lower alkyl, preferably methyl groups. The alkyl groups can optionally be substituted, for example, with electron donating groups, electron with drawing groups, groups which increase the hydrophilicity or hydrophobocity, and the like. In another embodiment, the derivatives are prepared by replacing the aldehyde group in the essential oil with a nitrile, methyl ether or acetal group. The acetal groups can provide the compounds with a long lasting flavor or fragrance, where the acetals slowly hydrolyze to provide the aldehyde group in the parent essential oil. In some embodiments, both the aldehyde and at least one of the double bond functional groups are both derivatized as described herein. Examples of suitable articles of manufacture include candles, air fresheners, perfumes, disinfectant compositions, hypochlorite (bleach) compositions, beverages such as beer and soda, denture cleanser tablets and flavored orally-delivered products such as lozenges, candies, and the like.
本发明公开了经改进的芳香化学品衍生物,以及包括这些衍生物的香料和调味品,它们的有效保质期比衍生出这些衍生物的芳香化学品更长。特别是,这些衍生物既能保持芳香化学品的香味特性,又能降低过敏性、提高稳定性和/或增加气味强度。此外,还公开了制造衍生物的方法,以及包括衍生物在内的制造品。在一个实施方案中,衍生物的制备方法是用硫醚、环丙基、环氧乙烷或硫环基团取代柠檬醛中的一个或多个双键。环丙烷环可以是未取代的,也可以被一个或两个低级烷基(最好是甲基)取代。烷基可以选择性地被取代,例如,电子捐赠基团、电子拉伸基团、增加亲水性或疏水性的基团等。在另一个实施方案中,衍生物是通过用腈、甲醚或缩醛基团取代精油中的醛基来制备的。缩醛基团可以为化合物提供持久的味道或香味,其中的缩醛会慢慢水解,以提供母体精油中的醛基团。在某些实施方案中,醛基和至少一个双键官能团都会如本文所述被衍生化。适用的制造品包括蜡烛、空气清新剂、香水、消毒剂组合物、次氯酸盐(漂白剂)组合物、啤酒和苏打水等饮料、义齿清洁片剂以及锭剂、糖果等口服调味产品。