申请人:BASF Aktiengesellschaft
公开号:US04707302A1
公开(公告)日:1987-11-17
2-Substituted 4,4,7,7-tetramethyl-1,3-dioxacycloheptanes of the general formula I ##STR1## where R.sup.1 is a straight-chain or branched alkyl of 1 to 10 carbon atoms which additionally may contain oxygen in the form of an ether group or is 5- to 8-membered cycloalkyl of up to 10 carbon atoms which may additionally contain oxygen in the form of an ether group, of which particularly interesting representatives are 2,4,4,7,7-pentamethyl-1,3-dioxacycloheptane, 2-tert.-butyl-4,4,7,7-tetramethyl-1,3-dioxacycloheptane and 2-isopropyl-4,4,7,7-tetramethyl-1,3-dioxacycloheptane, are prepared and used as scents.
化学式为I的2-取代的4,4,7,7-四甲基-1,3-二氧杂环庚烷,其中R.sup.1是1至10个碳原子的直链或支链烷基,此外还可以以醚基的形式含有氧,或是5至8个成员的环烷基,其中碳原子数最多为10,此外还可以以醚基的形式含有氧。特别有趣的代表是2,4,4,7,7-五甲基-1,3-二氧杂环庚烷,2-叔丁基-4,4,7,7-四甲基-1,3-二氧杂环庚烷和2-异丙基-4,4,7,7-四甲基-1,3-二氧杂环庚烷。它们被制备并用作香料。