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公开(公告)号:US4057583A
公开(公告)日:1977-11-08
申请号:US640801
申请日:1975-12-15
申请人: Walter Merz , Dieter Nachtsheim
发明人: Walter Merz , Dieter Nachtsheim
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。
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公开(公告)号:US4307253A
公开(公告)日:1981-12-22
申请号:US110034
申请日:1980-01-07
CPC分类号: C07C41/14 , Y02P20/582
摘要: Procecss for the preparation of alkyl aryl ethers by reacting phenols with aliphatic ethers in the presence of strongly acid cation exchangers.
摘要翻译: 通过在强酸性阳离子交换剂存在下使酚与脂肪族醚反应制备烷基芳基醚的方法。
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