申请人:BASF Aktiengesellschaft
公开号:US04761489A1
公开(公告)日:1988-08-02
Substituted 5-formyl-1,3-dioxepans of the general formula I ##STR1## where R.sup.1 is a straight-chain or branched alkyl radical of 1 to 10 carbon atoms which may furthermore contain oxygen in the form of an ether group, or a 5-membered to 8-membered ring which is unsubstituted or substituted by alkyl groups and/or an alkylene group, has up to 10 carbon atoms and may furthermore contain oxygen in the form of an ether group, R.sup.2 is hydrogen, or R.sup.1 and R.sup.2 together form an alkylene radical of 4 to 10 carbon atoms which is unsubstituted or substituted by alkyl or alkoxy and may furthermore contain oxygen in the form of an ether group, and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each hydrogen or methyl, and the total number of carbon atoms is not more than 25, their preparation and their use as scents. Particularly interesting compounds are 2-tert-butyl-5-formyl-1,3-dioxepan, 2-isopropyl-5-formyl-1,3-dioxepan, 2-pentyl-4,7-dimethyl-5-formyl-1,3-dioxepan, 2-(2,4,4-trimethylpentyl)-5-formyl-1,3-dioxepan, 9-formyl-7,12-dioxaspiro[5,6]dodecane and 2,4,4,7,7-pentamethyl-5-formyl-1,3-dioxepan.
通式I的5-甲醛基-1,3-二氧杂环戊烷的替代物,其中R.sup.1是1到10个碳原子的直链或支链烷基基团,该基团可能进一步以醚基的形式含有氧,或者是一个未取代或取代的由烷基基团和/或烷基烷基取代的5-至8-元环,该环有最多10个碳原子,可能进一步以醚基的形式含有氧,R.sup.2是氢,或R.sup.1和R.sup.2一起形成一个未取代或取代的由烷基或烷氧基取代的4到10个碳原子的烷基基团,可能进一步以醚基的形式含有氧,R.sup.3、R.sup.4、R.sup.5和R.sup.6分别是氢或甲基,总碳原子数不超过25,它们的制备及用作香料。特别有趣的化合物包括2-叔丁基-5-甲醛基-1,3-二氧杂环戊烷,2-异丙基-5-甲醛基-1,3-二氧杂环戊烷,2-戊基-4,7-二甲基-5-甲醛基-1,3-二氧杂环戊烷,2-(2,4,4-三甲基戊基)-5-甲醛基-1,3-二氧杂环戊烷,9-甲醛基-7,12-二氧杂螺[5,6]十二烷和2,4,4,7,7-五甲基-5-甲醛基-1,3-二氧杂环戊烷。