Production of 6,10-dimethylundecatriene-(3,5,10)-one-(2)
    7.
    发明授权
    Production of 6,10-dimethylundecatriene-(3,5,10)-one-(2) 失效
    (3,5,10) - 酮(2)的制备6,10-二甲基 -

    公开(公告)号:US3860654A

    公开(公告)日:1975-01-14

    申请号:US7493970

    申请日:1970-09-23

    Applicant: BASF AG

    Abstract: Production of Beta -ionone by reaction of 3,7-dimethylocten(7)-yn-(1)-ol-(3) with diketene to form the acetoacetic ester of 3,7-dimethylocten-(7)-yn-(1)-ol-(3), decomposing the same at 100* to 400*C in the presence of an acid catalyst and/or after treating the mixture in the presence of the catalyst and cyclizing the 6,10-dimethylundecatrien-(3,5,10)-one-(2) obtained by treatment with concentrated sulfuric acid at temperatures of from -30* to 20*C.

    Abstract translation: 通过3,7-二甲基辛烯(7)-yn-(1) - 醇 - (3)与双烯酮的反应生成β-戊酮,形成3,7-二甲基辛烯(7)-yn-( 1)-ol-(3),在酸催化剂存在下,在100〜400℃下分解,和/或在催化剂存在下处理混合物后,将6,10-二甲基二十碳三烯(3 ,5,10) - 酮 - (2),通过在-30℃至20℃的温度下用浓硫酸处理得到。

    Production of 2-methyl-2-hepten-6-one
    8.
    发明授权
    Production of 2-methyl-2-hepten-6-one 失效
    2-甲基-2-羟基-6-酮的制备

    公开(公告)号:US3670028A

    公开(公告)日:1972-06-13

    申请号:US3670028D

    申请日:1968-09-20

    Applicant: BASF AG

    CPC classification number: C07C45/67 C07C49/203

    Abstract: The production of 2-methyl-1-hepten-6-ones (important for organic syntheses of perfumes and carotenoids) by isomerization of 2-methyl-1-hepten-6-one by means of finelly divided palladium or compounds of divalent palladium as isomerization catalysts.

    Abstract translation: 2-甲基-1-庚烯-6-酮的生产(通过香料和类胡萝卜素的有机合成重要),通过将分离的二价钯或二价钯的化合物2-甲基-1-庚烯-6-酮异构化 异构化催化剂。

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