Substituted 5-formyl-1,3-dioxepans
    4.
    发明授权
    Substituted 5-formyl-1,3-dioxepans 失效
    取代的5-甲酰基-1,3-二氧杂环己烷

    公开(公告)号:US4761489A

    公开(公告)日:1988-08-02

    申请号:US924762

    申请日:1986-10-30

    摘要: 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.

    摘要翻译: 取代的通式Ⅰ(I)的5-甲酰基-1,3-二氧杂环庚烷,其中R 1是1至10个碳原子的直链或支链烷基,其还可含有醚基形式的氧 或未被取代或被烷基和/或亚烷基取代的5元至8元环具有至多10个碳原子,并且还可含有醚基形式的氧,R 2为氢或 R1和R2一起形成4至10个碳原子的亚烷基,其未被取代或被烷基或烷氧基取代,并且还可含有醚基形式的氧,且R 3,R 4,R 5和R 6各自为氢或甲基, 碳原子总数不超过25个,它们的制备和用作气味。 特别令人感兴趣的化合物是2-叔丁基-5-甲酰基-1,3-二氧杂环庚烷,2-异丙基-5-甲酰基-1,3-二氧杂环庚烷,2-戊基-4,7-二甲基-5-甲酰基-1, 3-二氧杂环庚烷,2-(2,4,4-三甲基戊基)-5-甲酰基-1,3-二氧杂环庚烷,9-甲酰基-7,12-二氧杂螺[5,6]十二烷和2,4,4,7, 7-五甲基-5-甲酰基-1,3-二氧杂环庚烷。

    4-Methyl-4-phenyl-1-pentanals, their preparation and their use as scents
    5.
    发明授权
    4-Methyl-4-phenyl-1-pentanals, their preparation and their use as scents 失效
    4-甲基-4-苯基-1-戊醛,它们的制备及其用作香料

    公开(公告)号:US4837201A

    公开(公告)日:1989-06-06

    申请号:US194892

    申请日:1988-05-17

    摘要: 4-methyl-4-phenyl-1-pentanals of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.2 is hydrogen or methyl, with the exception of 4-methyl-4-phenyl-1-pentanal, and the use of the methylphenylpentanals of the formula I for imparting fragrance properties to, or improving or modifying the fragrance properties of, perfumes and perfumed products, and the preparation of these compounds by hydroformylation of the corresponding 3-methyl-3-phenyl-1-butenes of the general formula II ##STR2## and, if required, subsequent reaction with formaldehyde and partial hydrogenation.

    摘要翻译: 其中R1是氢或C1-C4-烷基,R2是氢或甲基的4-甲基-4-苯基-1-戊醛,其中R 1是氢或甲基,除了4-甲基-4-苯基 -1-戊醛,以及使用式I的甲基苯基戊醛赋予香料性能或改善或改进香料和香料产品的香料性能,以及通过相应的3-甲基-1-戊醛的加氢甲酰化来制备这些化合物, 通式II的2-苯基-1-丁烯(II)和如果需要,随后与甲醛反应和部分氢化。

    Preparation of 1,4-alkylenediamines
    7.
    发明授权
    Preparation of 1,4-alkylenediamines 失效
    1,4-亚烷基二胺的制备

    公开(公告)号:US5254738A

    公开(公告)日:1993-10-19

    申请号:US657632

    申请日:1991-02-19

    CPC分类号: C07C209/48

    摘要: A process for the preparation of a 1,4-alkylenediamine of the general formula I ##STR1## in which the substituents R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1 -C.sub.10 -alkyl, phenyl or benzyl, by reacting a succinic dinitrile of the general formula II ##STR2## in which R.sup.1 and R.sup.2 have the meanings stated, with hydrogen at a temperature of from 30.degree. to 250.degree. C. and a pressure of from 50 to 350 bar in contact with a hydrogenation catalyst, wherein the hydrogenation catalyst used contains cobalt oxide and one or more oxides of the elements iron, nickel, manganese, chromium, molybdenum, tungsten, and phosphorus and one or more oxides of elements in the alkali metal group, alkaline earth metal group, and rare earth group of the Periodic Table, and of scandium, and/or of yttrium.

    摘要翻译: 制备通式I(I)的1,4-亚烷基二胺的方法,其中取代基R 1和R 2独立地为氢,C 1 -C 10 - 烷基,苯基或苄基,通过使琥珀酸二腈与 其中R1和R2具有所述含义的通式II(II),氢气在30℃至250℃的温度和50至350巴的压力下与氢化催化剂接触, 其中使用的氢化催化剂包含氧化钴和一种或多种元素铁,镍,锰,铬,钼,钨和磷的氧化物和一种或多种碱金属组元素,碱土金属组和稀有元素中的元素氧化物 周期表地球组,钪和/或钇。