Preparation of N-acylamino carboxylic acids and N-acylamino sulfonic
acids and their alkali metal salts
    63.
    发明授权
    Preparation of N-acylamino carboxylic acids and N-acylamino sulfonic acids and their alkali metal salts 失效
    制备N-酰基氨基羧酸和N-酰基氨基磺酸及其碱金属盐

    公开(公告)号:US5856538A

    公开(公告)日:1999-01-05

    申请号:US809139

    申请日:1997-03-24

    摘要: N-acylamino carboxylic acids and N-acylamino sulfonic acids and their alkali metal salts from the technical alkali metal salts of amino carboxylic acids and amino sulfonic acids, respectively, with an active content of 50-95% by weight, based on the solids content of the technical alkali metal salts, and from alkyl carboxylates, are prepared by(a) preparing a suspension of the solid anhydrous technical alkali metal salts of the amino carboxylic acids or amino sulfonic acids in the alkyl carboxylates,(b) reacting this suspension by adding more than 30 to 150 mol % of strong bases to give the alkali metal salts of the N-acylamino carboxylic acids or N-acylamino sulfonic acids, and(c) if required preparing therefrom the free N-acylamino carboxylic acids or N-acylamino sulfonic acids in a conventional way by adding acids.

    摘要翻译: PCT No.PCT / EP95 / 03584 371日期1997年3月24日 102(e)1997年3月24日PCT PCT 1995年9月12日PCT公布。 出版物WO96 / 09278 日期1996年3月28日N-酰氨基羧酸和N-酰氨基磺酸及其碱金属盐分别来自氨基羧酸和氨基磺酸的工业碱金属盐,活性含量为50-95重量% (a)制备氨基羧酸或氨基磺酸的固体无水工业碱金属盐在羧酸烷基酯中的悬浮液(b),其基于工业碱金属盐和羧酸烷基酯的固体含量,(b) )通过加入大于30至150mol%的强碱使该悬浮液反应得到N-酰基氨基羧酸或N-酰基氨基磺酸的碱金属盐,和(c)如果需要,由游离的N-酰基氨基羧酸 酸或N-酰氨基磺酸以常规方式加入酸。

    Preparation of N-allyl compounds
    65.
    发明授权
    Preparation of N-allyl compounds 失效
    N-烯丙基化合物的制备

    公开(公告)号:US5606067A

    公开(公告)日:1997-02-25

    申请号:US318743

    申请日:1994-10-19

    CPC分类号: C07D213/20

    摘要: A process for the preparation of N-allyl compounds of the general formula I ##STR1## in which ##STR2## denotes a nitrogen-containing heterocyclic compound, R.sup.1, R.sup.3, and R.sup.4 independently denote hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.2 denotes hydrogen or methyl,n is equal to 1, 2, 3, or 4, andX denotes a water-solubilizing anion,wherein a compound of formula II ##STR3## is caused to react, in aqueous medium, with a compound of formula III ##STR4## in which A denotes a radical which can be eliminated as an anion. The compounds produced by the process of the invention are very well suited for use as brighteners in nickel electroplating.

    摘要翻译: PCT No.PCT / EP93 / 01090 Sec。 371日期:1994年10月19日 102(e)日期1994年10月19日PCT提交1993年5月5日PCT公布。 第WO93 / 23377号公报 日期:1993年11月25日制备通式Ⅰ的N-烯丙基化合物的方法,其中表示含氮杂环化合物,R1,R3和R4独立地表示氢或C1-C4 烷基,R 2表示氢或甲基,n等于1,2,3或4,X表示水溶性阴离子,其中使式II化合物II在水性介质中与 式III的化合物,其中A表示可以作为阴离子去除的基团。 通过本发明的方法生产的化合物非常适合用作镍电镀中的增白剂。