Preparation of s-triazine derivatives
    11.
    发明授权
    Preparation of s-triazine derivatives 失效
    s-三嗪衍生物的制备

    公开(公告)号:US4656272A

    公开(公告)日:1987-04-07

    申请号:US855383

    申请日:1986-04-24

    CPC classification number: C07D251/70

    Abstract: s-Triazine compounds which can be used as sunscreen agents are prepared in a technically simpler manner by a process in which an ester of a branched alkanoic acid with a saturated aliphatic alcohol or, if appropriate, a mixture of such alcohols is used as the solvent in the reaction of a cyanuric halide with a p-aminobenzoate.

    Abstract translation: 可以用作防晒剂的s-三嗪化合物以技术上更简单的方式制备,其中使用支链烷酸与饱和脂族醇的酯或如果合适的话使用这些醇的混合物作为溶剂 在氰尿酰卤与对氨基苯甲酸酯的反应中。

    Preparation of high-purity isobutyramide
    14.
    发明授权
    Preparation of high-purity isobutyramide 失效
    高纯度异丁酰胺的制备

    公开(公告)号:US5523485A

    公开(公告)日:1996-06-04

    申请号:US355288

    申请日:1994-12-12

    CPC classification number: C07C231/02

    Abstract: A process for preparing high-purity isobutyramide which comprises reacting isobutyryl chloride in toluene or xylene at -15.degree. to 30.degree. C. with ammonia is described.

    Abstract translation: 描述了一种制备高纯度异丁酰胺的方法,该方法包括使-15℃至30℃下的异丁酰氯在甲苯或二甲苯中与氨反应。

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