Process for the preparation of 5-alkoxy-2-nitroso phenols
    1.
    发明授权
    Process for the preparation of 5-alkoxy-2-nitroso phenols 失效
    5-烷氧基-2-亚硝基苯酚的制备方法

    公开(公告)号:US5250741A

    公开(公告)日:1993-10-05

    申请号:US912372

    申请日:1992-07-13

    申请人: Robert J. Maleski

    发明人: Robert J. Maleski

    CPC分类号: C07C201/00 C07C201/08

    摘要: Disclosed is a process for the preparation of 5-alkoxy-2-nitrosophenols by the nitrosation of 3-alkoxyphenols using an alkali metal nitrite and an alkanoic acid wherein the selectivity of the nitrosation is improved. Also disclosed is a 2-step process for the preparation of 5-alkoxy-2-nitrophenols by oxidizing the 5-alkoxy-2-nitrosophenols obtained in accordance with the present invention.

    摘要翻译: 公开了通过使用碱金属亚硝酸盐和链烷酸亚硝化3-烷氧基苯酚制备5-烷氧基-2-亚硝基苯酚的方法,其中亚硝化的选择性得到改善。 还公开了通过氧化根据本发明获得的5-烷氧基-2-亚硝基苯酚制备5-烷氧基-2-硝基苯酚的两步法。