Process for preparing 4-arylamino-benzopyran and related compounds
    75.
    发明授权
    Process for preparing 4-arylamino-benzopyran and related compounds 失效
    4-芳基氨基 - 苯并吡喃及相关化合物的制备方法

    公开(公告)号:US5629429A

    公开(公告)日:1997-05-13

    申请号:US486111

    申请日:1995-06-07

    CPC分类号: C07D405/12 C07D493/04

    摘要: A method of preparing compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof which comprises converting a compound of the formula ##STR2## where the R.sup.2 substituent contains a hydrogen atom which is more acidic than the starred (*) hydrogen atom in formula II, to the corresponding dianion of formula ##STR3## where M is a counterion preferably lithium or magnesium, using two equivalents of a base in an inert solvent such as tetrahydrofuran; then reacting compounds of formula IIA with an epoxide of formula ##STR4## to produce the compounds of formula I.

    摘要翻译: 制备式I化合物及其药学上可接受的盐的方法,其包括转化式II化合物,其中R 2取代基含有比在星形(*)氢原子中酸性更高的氢原子 式Ⅱ与相应的式IIA的二价阴离子,其中M为抗衡离子优选为锂或镁,在惰性溶剂如四氢呋喃中使用2当量碱; 然后使式IIA的化合物与式III的环氧化物反应以制备式I的化合物。

    Nitrogen containing heterocyclic peroxyacid
    76.
    发明授权
    Nitrogen containing heterocyclic peroxyacid 失效
    含氮杂环过氧酸

    公开(公告)号:US5268472A

    公开(公告)日:1993-12-07

    申请号:US956567

    申请日:1992-10-05

    CPC分类号: C11D3/3945 C07D211/62

    摘要: Nitrogen-containing heterocyclic (poly) peroxycarboxylic acid monopersulfates which have the formula: ##STR1## wherein the symbols have the following meanings: R represents a hydrogen atom or an alkyl, (hetero)cycloalkyl, (hetero)aryl, alkyl-aryl or arylalkyl group, wherein said groups are optionally substituted, or a carboxylic group or a peroxycarboxylic group, or any other substituents non-reactive in the presence of the peroxycarboxylic group;R.sup.1 represents an alkyl group > C.sub.5 ;n is a number selected from 0,1 and 2;m is a number selected from 1, 2 and 3;and the heterocyclic ring may be in its turn condensed with at least one further (hetero) aromatic or (hetero)cycloalkylic ring. The invention relates to a preparation process for, and to their use, as bleaching agents.

    摘要翻译: 具有下式的含氮杂环(聚)过氧羧酸单过硫酸盐:其中符号具有下列含义:R表示氢原子或烷基,(杂)环烷基,(杂)芳基,烷基 - 芳基或芳烷基,其中所述基团任选被取代,或羧基或过氧羧基,或任何其它在过氧羧酸存在下不反应的取代基; R1表示烷基> C5; n是选自0,1和2的数字; m是选自1,2和3的数字; 并且杂环可以再次与至少一个另外的(杂)芳族或(杂)环烷基环稠合。 本发明涉及作为漂白剂的制备方法及其用途。

    Thioethers of imidazolines
    78.
    发明授权
    Thioethers of imidazolines 失效
    咪唑啉的硫醚

    公开(公告)号:US4616085A

    公开(公告)日:1986-10-07

    申请号:US444417

    申请日:1982-11-24

    摘要: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.

    摘要翻译: 本发明涉及以下:(1)以聚合物巯基为特征的含氨基组合物,(2)以巯基或聚合物巯基为特征的含聚氨基的组合物,(3)一种组合物,其特征在于存在A.巯基或 聚合巯基和B.含氮基团,其特征在于以下至少一种:1.酰胺基或聚酰胺基,环状脒或多环脒基,3.表卤代醇衍生的含氨基的基团 。 本发明还涉及上述组合物作为腐蚀抑制剂的用途。