发明授权
US5877355A 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing
hydroxyarylaldehydes therefrom
失效
2-羟基-5-烷基-β-甲基苯乙烯及其制备羟基芳基醛的方法
- 专利标题： 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom
- 专利标题（中）： 2-羟基-5-烷基-β-甲基苯乙烯及其制备羟基芳基醛的方法
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申请号： US912009申请日： 1997-08-15
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公开(公告)号： US5877355A公开(公告)日： 1999-03-02
- 发明人: Leroy Krbechek
- 申请人： Leroy Krbechek
- 申请人地址： PA Plymouth Meeting
- 专利权人： Henkel Corporation
- 当前专利权人： Henkel Corporation
- 当前专利权人地址： PA Plymouth Meeting
- 主分类号： C07C37/48
- IPC分类号： C07C37/48 ; C07C45/40 ; C07C45/67 ; C07C67/293 ; C07C69/017 ; C07C45/27
摘要：
Process for making an alkyl-substituted salicylaldehyde wherein the alkyl substitution amounts to at least 8 alkyl carbon atoms per molecule, and preferably not more than 25, comprising ozonolizing an alkyl-substituted 2-hydroxy beta-methylstyrene wherein said alkyl substitution amounts to at least 8 carbon atoms per molecule. Upon oximation of the products, useful metal extractants are produced, particularly for the extraction of copper.
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