Process for the preparation of the (-)-antipode of
(E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-en
e
    61.
    发明授权
    Process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-en e 失效
    (E)-1-环己基-4,4-二甲基-3-羟基-2-(1,2,4-三唑-1-基) - 戊-1-烯-1-酮的( - ) - 对映体的制备方法, 恩

    公开(公告)号:US4950767A

    公开(公告)日:1990-08-21

    申请号:US265191

    申请日:1988-10-31

    申请人: Udo Kraatz

    发明人: Udo Kraatz

    摘要: A process for the preparation of an optically active proline derivative of the formula ##STR1## in which R.sup.1 is alkyl, phenyl or benzyl, or an acid addition salt thereof, comprising reacting an S-proline ester of the formula ##STR2## in which R.sup.2 is alkyl with 1 to 4 carbon atoms, in a first stage with benzyl chloroformate of the formula ##STR3## in the presence of an acid-binding agent and in the presence of a diluent, thereby to produce an ester with the S-configuration on the asymmetrically substituted carbon atom, of the formula ##STR4## reacting such ester in a second stage with a Grignard compound of the formulaR.sup.1 --Mg Xin which X is chlorine, bromine or iodine, in the presence of a diluent, thereby to produce an S-proline derivative of the formula ##STR5## and reacting such S-proline derivative in a third stage with hydrogen in the presence of a catalyst, a diluent, and optionally an acid. The end product is new.

    Process for the preparation of the (-)-antipode of
(E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-en
e
    62.
    发明授权
    Process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-en e 失效
    (E)-1-环己基-4,4-二甲基-3-羟基-2-(1,2,4-三唑-1-基) - 戊-1-烯-1-酮的( - ) - 对映体的制备方法, 恩

    公开(公告)号:US4804766A

    公开(公告)日:1989-02-14

    申请号:US835587

    申请日:1986-03-03

    IPC分类号: C07D249/08 C07D521/00

    摘要: A process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## with lithium aluminum hydride in the presence of an inert organic diluent and in the presence of a chiral aminoalcohol at a temperature between -70.degree. C. and +50.degree. C. The (-)-antipode is produced in high selectivity, using (-)-N-methyl-ephedrine.

    摘要翻译: (E)-1-环己基-4,4-二甲基-3-羟基-2-(1,2,4-三唑-1-基) - 戊-1-酮的( - ) - 对映体的制备方法 该方法包括使1-环己基-4,4-二甲基-2-(1,2,4-三唑-1-基) - 戊-1-烯-1-酮的(E) - 异构体与式 在惰性有机稀释剂存在下,在-70℃至+ 50℃的温度下,在手性氨基醇存在下,将式(IMAGE)的3-酮与氢化铝锂反应。( - ) - 对映体 使用( - ) - N-甲基麻黄碱以高选择性产生。

    Halogenoalkyl-, alkenyl- and alkinyl-azoles
    63.
    发明授权
    Halogenoalkyl-, alkenyl- and alkinyl-azoles 失效
    卤代烷基 - ,烯基 - 和炔基 - 唑类

    公开(公告)号:US4783474A

    公开(公告)日:1988-11-08

    申请号:US104710

    申请日:1987-10-02

    摘要: Novel halogenoalkyl-, alkenyl- and alkinyl-azoles of the formula ##STR1## in which X represents a nitrogen atom or a CH grouping,R represents optionally substituted tert.-alkyl or optionally substituted cycloalkyl, andA represents one of the groupings --C.tbd.C--, ##STR2## in which R.sup.1 represents halogen, alkoxy or trialkylsilyloxy,R.sup.2 represents hydrogen or halogen, andR.sup.3 represents halogen,and acid and metal salt addition products thereof synergize insecticides and herbicides which function by photosynthesis inhibition.

    摘要翻译: 式中,X表示氮原子或CH基团的新型卤代烷基 - ,烯基 - 和炔基 - 唑,R表示任意取代的叔烷基或任选取代的环烷基,A表示-C 其中R 1表示卤素,烷氧基或三烷基甲硅烷氧基,R 2表示氢或卤素,R 3表示卤素,并且其酸金属盐和金属盐加成产物协同作用于光合作用抑制作用的杀虫剂和除草剂。