Novel process for preparing semi-caronic aldehydes
    61.
    发明授权
    Novel process for preparing semi-caronic aldehydes 失效
    制备半碳醛的新方法

    公开(公告)号:US5004840A

    公开(公告)日:1991-04-02

    申请号:US282382

    申请日:1988-12-09

    CPC分类号: C07D317/30 C07C62/16

    摘要: A novel process for the preparation of compounds of the formula ##STR1## with cis or trans structure in racemic or optically active form wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and aryl of 6 to 12 carbon atoms comprising reacting an optically active isomer, or racemate of the formula ##STR2## wherein R has the above definition and the way line indicates Z or E geometry with a gem-dimethyl cyclopropanation agent if there is Z geometry to obtain a compound of the formula ##STR3## or if the geometry is E with a gem-dimethyl cyclopropanation agent other than isopropylidene triphenyl phosphorane to obtain a compound of the formula ##STR4## wherein R has the above definition and the cyclopropane ring has the trans configuration and either hydrolyzing the compound of formula III or IIIa to obtain a compound of the formula ##STR5## and then cleaving the 4,5 bond to obtain the corresponding compound of formula I or simultaneously cleaving the 4,5 bond and hydrolyzing the dioxolane group to obtain the corresponding compound of formula I and novel intermediates.

    摘要翻译: 用于制备具有外消旋或旋光活性形式的顺式或反式结构的式I化合物的新方法,其中R选自氢,1至4个碳原子的烷基和6至12个芳基 包括使光学活性异构体或其中R具有上述定义的光学活性异构体或外消旋物,如果存在Z几何形式,则使用偕二甲基环丙烷化剂代替Z或E几何形式,以获得化合物 或者如果几何形状是具有除异亚丙基三苯基膦之外的偕二甲基环丙烷化剂的E,以获得式IIIa的化合物,其中R具有上述定义,并且环丙烷环具有反式构型,并且 水解式III或IIIa的化合物以获得式IV的化合物,然后切割4,5键以获得相应的式I化合物或同时进行 研制4,5键并水解二氧戊环,得到相应的式Ⅰ化合物和新型中间体。

    Dioxolane substituted 2,6-dinitroanilines
    66.
    发明授权
    Dioxolane substituted 2,6-dinitroanilines 失效
    二氧杂环戊烷取代的2,6-二硝基苯胺

    公开(公告)号:US4397677A

    公开(公告)日:1983-08-09

    申请号:US204446

    申请日:1980-11-06

    申请人: Leonard J. Stach

    发明人: Leonard J. Stach

    CPC分类号: A01N43/28 C07D317/28

    摘要: This invention discloses new chemical compounds of the formula ##STR1## wherein R.sup.1 is alkyl; R.sup.2 and R.sup.3 are hydrogen or alkyl; and X is selected from the group consisting of alkyl and haloalkyl, and their utility as herbicides.

    摘要翻译: 本发明公开了新的式(Ⅰ)化合物,其中R1是烷基; R2和R3是氢或烷基; 并且X选自烷基和卤代烷基,及其作为除草剂的用途。

    5-Oxa-13,14-didehydro-PGE.sub.1 compounds
    70.
    发明授权
    5-Oxa-13,14-didehydro-PGE.sub.1 compounds 失效
    5-Oxa-13,14-二脱氢PGE {HD 1 {B化合物

    公开(公告)号:US4119664A

    公开(公告)日:1978-10-10

    申请号:US775074

    申请日:1977-03-07

    申请人: Herman W. Smith

    发明人: Herman W. Smith

    摘要: This invention comprises certain analogs of the prostaglandins in which the double bond between C-13 and C-14 is replaced by a triple bond. Also provided in this invention, are novel chemical processes and novel chemical intermediates useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.

    摘要翻译: 本发明包括其中C-13和C-14之间的双键被三键取代的前列腺素的某些类似物。 本发明还提供了可用于制备上述前列腺素类似物的新颖化学方法和新型化学中间体。 这些前列腺素类似物表现出前列腺素样活性,因此可用于与前列腺素相同的药理学目的。 其中包括降血压,术中诱导,生殖周期调节,胃分泌作用等。