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93 条记录 (耗时 0.012 秒)

    Preparation of alkyl furans by dehydrocyclization
    15.
    发明授权
    Preparation of alkyl furans by dehydrocyclization 失效
    通过脱氢环化法制备烷基呋喃

    公开(公告)号：US3892783A

    公开(公告)日：1975-07-01

    申请号：US12157971

    申请日：1971-03-05

    申请人： MARATHON OIL CO

    发明人： DUKE ROY B

    IPC分类号： B01J19/02 ,  C07D307/36 ,  C07D5/16

    CPC分类号： C07D307/36 ,  B01J19/02 ,  B01J2219/0236 ,  B01J2219/0277

    摘要： Mesityl oxide, a simple condensation product of acetone, is oxidatively dehydrogenated and dehydrocyclized in the presence of oxygen and a halogen promoter to give dimethylfuran, a high octane gasoline blending component. By adding or subtracting lower alkyl groups from the starting materials, corresponding mono-, poly-lower alkyl furans can be produced.

    摘要翻译： 氧化丙烯，简单的丙酮缩合产物在氧和卤素促进剂的存在下进行氧化脱氢和脱氢环化，得到二甲基呋喃，高辛烷值汽油调和组分。 通过从起始原料中加入或减少低级烷基，可以制备相应的单 - ，多 - 低级烷基呋喃。

    Derivatives of 4-chloro-5-sulfamoyl-anthranilic acid
    16.
    发明授权
    Derivatives of 4-chloro-5-sulfamoyl-anthranilic acid 失效
    4-氯代-5-磺酰氨基苯甲酸的衍生物

    公开(公告)号：US3860582A

    公开(公告)日：1975-01-14

    申请号：US27131472

    申请日：1972-07-12

    申请人： TEVA MIDDLE EAST PHARM

    发明人： SCHOENBERG SHLOMO ,  YELLIN HAIM

    IPC分类号： C07C311/16 ,  C07C303/40 ,  C07C311/40 ,  C07D307/52 ,  C07D5/16 ,  A61K27/00

    CPC分类号： C07D307/52

    摘要： New derivatives of 4-chloro-5-sulfamoyl-anthranilic acid. In the new derivatives the 5-sulfamoyl group is substituted by R1XCH2, where X is oxygen or sulfur and R1 is a straight or branchedchain lower alkyl radical of up to 10 carbon atoms which may be substituted by a hydroxy or alkoxy group or several such groups, a cycloalkyl radical, an alkenyl or alkinyl radical, an aralkyl or heteroarylalkyl radical. The novel compounds are valuable diuretics and saluretics and they are prepared from corresponding free sulfamoyl compounds by reaction with formaldehyde or paraformaldehyde and a compound R1-XH where R1 and X have the same meaning as above.

    摘要翻译： 4-氯-5-氨磺酰 - 邻氨基苯甲酸的新衍生物。 在新衍生物中，5-氨磺酰基被R1XCH2取代，其中X是氧或硫，R1是至多10个碳原子的直链或支链低级烷基，其可被羟基或烷氧基取代或几个 这些基团，环烷基，烯基或炔基，芳烷基或杂芳基烷基。 新型化合物是有价值的利尿剂和盐溶剂，它们是通过与甲醛或多聚甲醛反应制备的相应的游离氨磺酰化合物和化合物R1-XH，其中R1和X具有与上述相同的含义。