N-(5,7-dibromo-1,3-benzoxathiol-2-ylidene)-N-methylmethanaminium
bromide, N-(5,7-diiodo-1,3-benzoxathiol-2-ylidene)-N-methylmethanaminium
iodide and their preparation
    11.
    发明授权
    N-(5,7-dibromo-1,3-benzoxathiol-2-ylidene)-N-methylmethanaminium bromide, N-(5,7-diiodo-1,3-benzoxathiol-2-ylidene)-N-methylmethanaminium iodide and their preparation 失效
    N-(5,7-二溴-1,3-苯并恶唑-2-亚基)-N-甲基甲基溴化铵,N-(5,7-二碘-1,3-苯并恶唑-2-亚基)-N-甲基甲胺碘化物和 他们的准备

    公开(公告)号:US4087445A

    公开(公告)日:1978-05-02

    申请号:US780889

    申请日:1977-03-24

    IPC分类号: C07D327/04 A61K31/40

    CPC分类号: C07D327/04 C07C323/00

    摘要: N-(5,7-Dibromo-1,3-benzoxathiol-2-ylidene)-N-methylmethanaminium bromide and the analogous diodo iodide, new compounds, are prepared by the thermal rearrangement of O-(2,4,6-tribromophenyl)-N,N-dimethylthiocarbamate and O-(2,4,6-triiodophenyl)-N,N-dimethylthiocarbamate. The first-named compound has antimicrobial utility. Both compounds are useful as starting materials for the preparation of bis-(3,5-dibromo-2-hydroxyphenyl)disulfide and 2,4-diiodo-6-mercaptophenol, respectively, by hydrolysis of the two first-named compounds with methanolic sodium hydroxide. Both the disulfide and the mercaptophenol compounds have antimicrobial utility.

    摘要翻译: 通过O-(2,4,6-三溴苯基)的热重排制备N-(5,7-二溴-1,3-苯并恶唑-2-亚基)-N-甲基甲铵溴化物和类似的二碘碘化物,新化合物 )-N,N-二甲基硫代氨基甲酸酯和O-(2,4,6-三碘苯基)-N,N-二甲基硫代氨基甲酸酯。 第一个命名的化合物具有抗菌效用。 两种化合物分别可用作制备双 - (3,5-二溴-2-羟基苯基)二硫化物和2,4-二碘-6-巯基苯酚的起始原料,通过两种首先命名的化合物与甲醇钠的水解 氢氧化物。 二硫化物和巯基苯酚化合物都具有抗菌效用。

    Preparation of N-halo .alpha.,.alpha.-disubstituted .beta.-lactams
    12.
    发明授权
    Preparation of N-halo .alpha.,.alpha.-disubstituted .beta.-lactams 失效
    制备N-卤代α,α-二取代的β-内酰胺

    公开(公告)号:US4321193A

    公开(公告)日:1982-03-23

    申请号:US870311

    申请日:1978-01-18

    IPC分类号: C07D205/08

    CPC分类号: C07D205/08

    摘要: A process for preparing N-halo .alpha.,.alpha.-disubstituted .beta.-lactams comprising reacting a 3-halo 2,2-bis(halomethyl) propionamide with a sufficient amount of an aqueous solution of a hypohalite to form the corresponding N-halo 3,3-bis-(halomethyl)-2-azetidinone.

    摘要翻译: 制备N-卤代α,α-二取代β-内酰胺的方法,包括使3-卤代2,2-双(卤代甲基)丙酰胺与足够量的次卤酸盐水溶液反应形成相应的N-卤素, (卤代甲基)-2-氮杂环丁酮。

    Aqueous antimicrobial composition having improved stability
    13.
    发明授权
    Aqueous antimicrobial composition having improved stability 失效
    具有改善的稳定性的水性抗微生物组合物

    公开(公告)号:US4232041A

    公开(公告)日:1980-11-04

    申请号:US50399

    申请日:1979-06-20

    CPC分类号: A01N37/30 A01N25/02 A01N37/34

    摘要: Aqueous antimicrobial compositions which comprise a halogenated amide antimicrobial, such as 2,2-dibromonitrilopropionamide, a water miscible organic solvent such as a straight chain polyalkylene glycol (e.g., polyethylene glycol 200) or an ether thereof (e.g., a mono- or di-lower alkyl and/or phenyl ether) and water and which have improved stability are obtained by ensuring that such compositions are substantially free of glycols having a molecular weight of less than about 70 and of salts of organic acids. The resulting improved compositions exhibit reduced rates of decomposition of the halogenated amide antimicrobial relative to the corresponding aqueous compositions containing salts of organic acids and/or glycols having a molecular weight of less than about 70.

    摘要翻译: 包含卤代酰胺抗微生物剂如2,2-二溴三氟丙酰胺,水混溶性有机溶剂如直链聚亚烷基二醇(例如聚乙二醇200)或其醚(例如,单 - 或二 - 低级烷基和/或苯基醚)和水,并且具有改善的稳定性通过确保这些组合物基本上不含分子量小于约70的二醇和有机酸盐获得。 所得到的改进的组合物相对于含有分子量小于约70的有机酸和/或二醇的盐的相应含水组合物表现出降低的卤代酰胺抗微生物的分解速率。

    Trifluoromethanesulfonates
    14.
    发明授权
    Trifluoromethanesulfonates 失效
    三氟甲磺酸盐

    公开(公告)号:US4125555A

    公开(公告)日:1978-11-14

    申请号:US799802

    申请日:1977-05-23

    摘要: Novel esters of the formula: ##STR1## promote char formation in polymer compositions containing a monovinylidene aromatic monomer, such as styrene, and an ethylenically unsaturated carboxylic anhydride, such as maleic anhydride. In such esters, R is an n-valent tertiary hydrocarbyl radical, an n-valent tertiary chlorohydrocarbyl radical, an n-valent tertiary hydrocarbyl radical containing at least one chain linkage of oxygen or an inertly substituted n-valent tertiary hydrocarbyl radical containing at least one bromine atom.

    Char-forming polymer compositions
    15.
    发明授权
    Char-forming polymer compositions 失效
    成型聚合物组合物

    公开(公告)号:US4038245A

    公开(公告)日:1977-07-26

    申请号:US688862

    申请日:1976-05-21

    IPC分类号: C07C309/65 C08K5/41

    摘要: Esters of the formula: ##STR1## wherein R is an n-valent tertiary hydrocarbyl radical or an inertly substituted n-valent tertiary hydrocarbyl radical, promote char formation in polymer compositions containing a monovinylidene aromatic monomer, such as styrene, and an ethylenically unsaturated carboxylic anhydride, such as maleic anhydride.

    摘要翻译: 具有下式的新颖的酯:在含有单亚乙烯基芳族单体如苯乙烯和烯属不饱和羧酸酐如马来酸酐的聚合物组合物中促进形成炭。 在这些酯中,R为n价叔烃基,n价叔氯烃基,含有至少一个氧链或至少含有惰性取代的n价叔烃基的n价叔烃基 一个溴原子。