Process for the preparation of optically active cyclopropane carboxylic
acids
    1.
    发明授权
    Process for the preparation of optically active cyclopropane carboxylic acids 失效
    光学活性环丙烷羧酸的制备方法

    公开(公告)号:US4508919A

    公开(公告)日:1985-04-02

    申请号:US555187

    申请日:1983-11-25

    CPC分类号: C07C51/487

    摘要: The invention relates to a process for the preparation of enantiomers of trans vinyl-cyclopropane carboxylic acids of the formula I, ##STR1## wherein R is a methyl group or chlorine atom, by resolution of racemic trans compound or mixture of racemic cis and trans compounds by using (+)- or (-)-N-(1-formamido-2,2,2-trichloroethyl)-piperazine as a resolving agent in a polar solvent then separating the crystallizing salt of (+)-trans carboxylic acid and (-)-resolving agent or (-)-trans carboxylic acid and (+)-resolving agent from the mother liquor by filtration and obtaining the enantiomers by acidifying the mother liquor or the salts suspended in water followed by extraction with a solvent and evaporation.The products so obtained may be used as starting materials for the preparation of insecticides.

    摘要翻译: 本发明涉及通过拆分外消旋反式化合物或外消旋的顺式和反式化合物的混合物制备式I的反式乙烯基 - 环丙烷羧酸的对映异构体的方法,其中R是甲基或氯原子 通过在极性溶剂中使用(+) - 或( - ) - N-(1-甲酰胺基-2,2,2-三氯乙基) - 哌嗪作为拆分剂,然后将(+) - 反式羧酸的结晶盐和 ( - ) - 拆分剂或( - ) - 反式羧酸和(+) - 拆分剂通过过滤从母液中获得对映异构体,通过酸化母液或悬浮在水中的盐,然后用溶剂萃取并蒸发 。 所得产物可用作制备杀虫剂的起始原料。

    Primycin-containing colloidal basic gel
    2.
    发明授权
    Primycin-containing colloidal basic gel 失效
    含乳液的胶体基础凝胶

    公开(公告)号:US5064815A

    公开(公告)日:1991-11-12

    申请号:US500236

    申请日:1990-03-26

    摘要: This invention relates to a primycin-containing colloidal basic gel comprising 5-30% of primycin and 95-70% of N-methyl-pyrrolidone-2. The invention also relates to antibacterial compositions particularly for the treatment of acne vulgaris comprising as active ingredient 0.1-100% of a primycin-containing colloidal basic gel, if desired together with further antimicrobial active ingredients, in admixture with 99.9-0% of usual inert pharmaceutical filling, diluting and other formulating additives. The invention also relates to combination composition comprising as active ingredient 1-60% of a primycin-containing colloidal basic gel and 0.1-40% of further pharmaceutical active ingredient(s), e.g. one or more antibiotic(s), chemotherapeutical agent(s), fungistatic or fungicidal agent(s), steroidal or non-steroidal antiinflammatory agent (s), epithelogenic agent(s), local anaesthetic(s), and/or vitamin(s).

    摘要翻译: 本发明涉及含有5-30%的伯霉素和95-70%N-甲基 - 吡咯烷酮-2的含有伯霉素的胶体碱性凝胶。 本发明还涉及特别用于治疗寻常痤疮的抗菌组合物,其包含作为活性成分的含有含伯霉素的胶体碱性凝胶(如果需要的话)与其它抗微生物活性成分一起,与99.9-0%通常的惰性混合物 药物灌装,稀释等配方添加剂。 本发明还涉及组合组合物,其包含作为活性成分的含有含伯霉素的胶体碱性凝胶和0.1-40%的其它药物活性成分,例如, 一种或多种抗生素,化学治疗剂,抑菌剂或杀真菌剂,类固醇或非甾体抗炎剂,上皮代谢剂,局部麻醉剂和/或维生素( s)。

    Process for the preparation of trichloromethyl carbinols
    3.
    发明授权
    Process for the preparation of trichloromethyl carbinols 失效
    制备三氯甲基甲醇的方法

    公开(公告)号:US4999454A

    公开(公告)日:1991-03-12

    申请号:US784692

    申请日:1985-10-03

    摘要: The invention is directed to a new process for the preparation of carbinols of the general formula I ##STR1## by reaction chloral and olefins of the general formula ##STR2## and by optional acylation of the product comprising dissolving a catalyst of the general formula IIIFe.sub.n (NH.sub.4).sub.x Y.sub.m .multidot.A.sub.p IIIin chloral, then adding the olefin of the general formula II in order to produce a complex of the general formula IV ##STR3## from which a complex of the general formula V ##STR4## is formed, and from the reaction mixture a compound of the general formula I is obtained whereafter(a) the residual complex of the general formula V dissolved in the product is decomposed with an acidic solution and if desired the obtained product is distilled or(b) the product in the reaction mixture is acylated.The compounds prepared according to the invention can be utilized as intermediates when preparing e.g., permethrin and other pyrethroid insecticides.

    摘要翻译: 本发明涉及一种通过反应式I和通式II的烯烃制备通式I的甲醇的新方法,并通过产物的任意酰化,包括将通式 III Fen(NH4)xYmxAp III,然后加入通式II的烯烃以产生通式IV的复合物IV,其中形成通式V的复合物V, 并且从反应混合物中获得通式I的化合物,之后(a)溶解在产物中的通式V的残余络合物用酸性溶液分解,如果需要,所得产物被蒸馏,或(b)产物 在反应混合物中进行酰化。 当制备例如氯菊酯和其他拟除虫菊酯杀虫剂时,根据本发明制备的化合物可以用作中间体。