Unsaturated macrocyclic ketones; their preparation; preparation of saturated macrocyclic ketones; application in perfume and flavour compositions of some unsaturated macrocyclic ketones
申请人:FIRMENICH SA
公开号:EP0015412A2
公开(公告)日:1980-09-17
Uaturated ketones of formula
possessing two single or two double bonds in the positions indicated by the dotted lines (n = 1 or 2) are prepared by reacting, in the presence of a basic reagent, a dialdehyde of formula
wherein the index n and the dotted lines have the above meaning with a diphosphonate of formula
wherein R represents an alkyl radical.
Compounds of formula (I), which are new, are also useful perfuming and flavouring ingredients.
式中的不饱和酮
在虚线所示位置(n = 1 或 2)具有两个单键或两个双键的式不饱和酮,是在碱性试剂存在下,通过与式 2 的二醛反应制备的。
式中的指数 n 和虚线具有上述含义。
其中 R 代表烷基。
新型的式 (I) 化合物也是有用的香水和香料成分。
US4302607A
申请人:——
公开号:US4302607A
公开(公告)日:1981-11-24
US4346023A
申请人:——
公开号:US4346023A
公开(公告)日:1982-08-24
Syntheses of muscone and exaltone by three-carbon ring expansion