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    • 4. 发明申请
    • PROCESS FOR THE PRODUCTION OF 6-METHYL HEPTANONE
    • 生产6-甲基庚烷酮的方法
    • WO02020449A1
    • 2002-03-14
    • PCT/EP2001/008990
    • 2001-08-03
    • C07C45/73C07C49/04
    • C07C45/73Y02P20/582Y02P20/584C07C49/04
    • The present invention relates to an improved process for the production of methyl heptanone and corresponding homologous methyl ketones, in particular phytone and tetrahydrogeranyl acetone, by aldolisation of isovaleraldehyde or prenal or of the corresponding aldehydes with acetone in the presence of a polyhydric alcohol containing the aldolisation catalyst and the heterogeneous hydrogenation catalyst. The working-up of the two-phase reaction mixture is carried out by simple separation of the supernatant produce phase from the catalyst suspension containing the active hydrogenation catalyst, optionally with distillative removal of the water of reaction that is formed, and recycling of the active catalyst phase.
    • 本发明涉及一种改进的制备甲基庚酮和相应的同系甲基酮,特别是植物酮和四氢笨香基丙酮的方法,通过在含有醛醇化的多元醇存在下,将异戊醛或前体或相应的醛与丙酮醛化 催化剂和非均相氢化催化剂。 两相反应混合物的处理是通过从含有活性氢化催化剂的催化剂悬浮液中简单地分离上清液产生相,任选地蒸馏除去所形成的反应水,以及活性物质的再循环 催化剂相。