Process of preparing N-substituted aldonamides
    1.
    发明授权
    Process of preparing N-substituted aldonamides 失效
    制备N-取代的异黄酮类药物的方法

    公开(公告)号:US5386018A

    公开(公告)日:1995-01-31

    申请号:US147699

    申请日:1993-11-04

    IPC分类号: C07C235/06 C07H15/04 C07G3/00

    CPC分类号: C07H15/04 C07C235/06

    摘要: N-substituted aldonamides are synthesized by the reaction of alkylamines and aldonolactone. Commercially available sources of aldonolactones (e.g., lactobiono-1,5-lactone) include aldonic acid (e.g., lactobionic acid). The presence of the acid leads to the formation of an ammonium salt impurity. The ammonium salt formation during the synthesis of N-alkyl aldonamides was minimized by the addition of an external acid. External acids and, optionally, emulsifiers were utilized to substantially reduce or eliminate the formation of an ammonium salt and to obtain N-substituted aldonamides of high purity.

    摘要翻译: N-取代的异丁酰胺通过烷基胺和醛酮内酯的反应合成。 醛糖内酯(例如,乳糖-1,5-内酯)的商业来源包括醛糖酸(例如乳糖酸)。 酸的存在导致形成铵盐杂质。 通过加入外部酸,使N-烷基异黄酮合成期间的铵盐形成最小化。 使用外部酸和任选的乳化剂来显着降低或消除铵盐的形成并获得高纯度的N-取代的异黄酮酰胺。

    Transparent soap bar
    3.
    发明授权
    Transparent soap bar 失效
    透明皂条

    公开(公告)号:US5310495A

    公开(公告)日:1994-05-10

    申请号:US541453

    申请日:1990-06-21

    IPC分类号: C11D17/00 C11D9/32 C11D9/30

    CPC分类号: C11D17/0095

    摘要: A transparent bar is disclosed which requires the components to fit within three critical ratios. The composition comprises a mixture of alkanolammonium and alkali metal C.sub.12 --C.sub.22 atom fatty acid salts, the mole ratio of alkanolammonium to alkali metal fatty acid salt being from about 0.1 to less than 1.0. A liquid solvent system must also be present which includes an amount of water and free alkanolamine in a weight ratio ranging from greater than 0.25 to less than 1.0. The weight ratio of total fatty acid salts to solvent must range from greater than 0.02 to less than 1.0.

    摘要翻译: 公开了一种透明条,其要求组件适合三个临界比。 该组合物包含链烷醇铵和碱金属C12-C22原子脂肪酸盐的混合物,链烷醇铵与碱金属脂肪酸盐的摩尔比为约0.1至小于1.0。 还必须存在一种液体溶剂系统,其中包含一定量的水和游离链烷醇胺,重量比范围为大于0.25至小于1.0。 总脂肪酸盐与溶剂的重量比必须在大于0.02至小于1.0的范围内。

    Process for manufacture of fatty acid esters of hydroxy sulfonates
    4.
    发明授权
    Process for manufacture of fatty acid esters of hydroxy sulfonates 失效
    制备羟基磺酸酯的脂肪酸酯的方法

    公开(公告)号:US4536338A

    公开(公告)日:1985-08-20

    申请号:US550274

    申请日:1983-11-09

    CPC分类号: C07C303/22

    摘要: A method is disclosed for preparing fatty acid isethionate soaps through direct esterification wherein the catalyst is quenched by an alkaline compound at the end of the esterification. Quenching inhibits transesterification between isethionate and later added stearic acids. Transesterification is undesirable impairing lather and bar soap firmness. The traditional stripping of lower molecular weight fatty acids is no longer necessary where low ratios of fatty acids to isethionates are utilized. Alternatively, stripping can be avoided with traditional molar ratios provided water co-distillate fatty acid is not recycled. Finally, it has been shown that zinc catalyzed reactions provide optimum yield and low corrosion at pH about 2.0 to 2.5.

    摘要翻译: 公开了通过直接酯化制备脂肪酸羟乙基磺酸盐皂的方法,其中催化剂在酯化结束时被碱性化合物淬灭。 淬灭抑制羟乙基磺酸盐和后来添加的硬脂酸之间的酯交换。 酯交换是不利的,不利于泡沫和酒吧皂的坚实性。 低分子量脂肪酸的传统剥离在使用低比例的脂肪酸与羟乙基磺酸盐时不再是必需的。 或者,可以避免与传统的摩尔比率的汽提,因为水不是再循环的共馏出物脂肪酸。 最后,已经表明,锌催化反应提供最佳的产率和低的腐蚀,pH约为2.0至2.5。