Process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives
    89.
    发明授权
    Process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives 失效
    获得水杨酸衍生物的(硝基甲基)苯基酯的方法

    公开(公告)号:US06696591B1

    公开(公告)日:2004-02-24

    申请号:US10019316

    申请日:2002-01-09

    IPC分类号: C07C20304

    摘要: A process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives of formula (I) wherein R1 is the OCOR3 group characterized in that it comprises the following steps: a) reaction of a halide of a salicylic acid derivative with hydroxybenzylacohol in the presence of a base: b) nutration of the obtained product in anhydrous conditions by a mixture of nitric acid with a different inorganic acid, or an organic acid, or an anhydride of one or two organic acids: c) recovery of the final product.

    摘要翻译: 一种获得式(I)的水杨酸衍生物(R 1为OCOR 3基团)的(硝基甲基)苯基酯的方法,其特征在于其包括以下步骤:a)水杨酸衍生物的卤化物与羟基苄基羟基醇在 碱:b)通过硝酸与不同无机酸或有机酸或一种或两种有机酸的酸酐的混合物在无水条件下使得到的产物营养化:c)回收最终产物。