Process for the preparation of pinacolone
    1.
    发明授权
    Process for the preparation of pinacolone 失效
    频哪酮的制备方法

    公开(公告)号:US4057583A

    公开(公告)日:1977-11-08

    申请号:US640801

    申请日:1975-12-15

    CPC分类号: C07C45/00 C07C45/60

    摘要: The invention provides a novel synthesis for pinacolone comprising reacting 2-methyl-but-2-ene and/or 2-methyl-but-1-ene with an aqueous inorganic acid, adding formaldehyde gradually at a temperature between 50.degree. and 200.degree. C at a rate of 0.5 - 1.5 moles of formaldehyde per mole of butene compound, allowing the mixture to react further, and separating the pinacolone by distillation.

    摘要翻译: 本发明提供了频哪酮的新型合成方法,包括使2-甲基丁-2-烯和/或2-甲基 - 丁-1-烯与无机酸水溶液反应,在50〜200℃的温度下逐渐加入甲醛 以每摩尔丁烯化合物0.5-1.5摩尔甲醛的速率使混合物进一步反应,并通过蒸馏分离频哪酮。