Preparation of .alpha.,.beta.-unsaturated carbonyl compounds
    31.
    发明授权
    Preparation of .alpha.,.beta.-unsaturated carbonyl compounds 失效
    (ALPHA),(BETA) - 饱和碳化合物的制备

    公开(公告)号:US5169958A

    公开(公告)日:1992-12-08

    申请号:US769022

    申请日:1991-10-01

    摘要: A process for the preparation of .alpha.,.beta.-unsaturated carbonyl compounds of the formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.10 -alkoxy or aryloxy,R.sup.2 is aryl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, trifluoromethyl and/or halogen andR.sup.3 is tetrahydrofuranyl or aryl which is substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, trifluoromethyl and/or halogen, which comprises reacting 3-amino-2-propen-1-ones of the formula II ##STR2## where R.sup.1 and R.sup.2 have the abovementioned meanings, and R.sup.4 and R.sup.5 are, independently of one another, hydrogen, C.sub.1 -C.sub.10 -alkyl or aryl, with a magnesium halide of the formula IIIR.sup.3 --Mg--Y (III) where Y is halogen, at from -20.degree. to 100.degree. C., and novel .alpha.,.beta.-unsaturated carbonyl compounds and novel 3-amino-2-propen-1-ones are described.

    摘要翻译: 制备式I的α,β-不饱和羰基化合物的方法,其中R1是氢,C1-C10-烷基,C1-C10-烷氧基或芳氧基,R2是未取代或取代的芳基 C1-C4-烷基,C1-C4-烷氧基,三氟甲基和/或卤素,R3是被C1-C4-烷基,C1-C4-烷氧基,三氟甲基和/或卤素取代的四氢呋喃基或芳基,其包括使3 - 氨基-2-丙烯-1-酮,其中R 1和R 2具有上述含义,并且R 4和R 5彼此独立地为氢,C 1 -C 10 - 烷基或芳基, 与式III的卤化镁R3-Mg-Y(III)其中Y是卤素,在-20℃至100℃,和新的α,β-不饱和羰基化合物和新的3-氨基-2-丙烯 描述-1。

    N,N'-disubstituted piperazines
    34.
    发明授权
    N,N'-disubstituted piperazines 失效
    N,N'-二取代哌嗪

    公开(公告)号:US4935426A

    公开(公告)日:1990-06-19

    申请号:US307525

    申请日:1989-02-08

    摘要: N,N'-disubstituted piperazines of the general formula I ##STR1## where the group is unsaturated (.dbd.) or saturated (--) and the substituents R.sup.1, R.sup.2 and A have the following meanings:A is --, --CH.dbd., --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --,R.sup.1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, alkylcycloalkyl, cycloalkenylalkyl, alkylcycloalkenyl, bicycloalkyl, bicycloalkylalkyl or alkylbicycloalkyl, these radicals being unsubstituted or substituted by hydroxy, halogen, alkoxy or trialkylsilyl,R.sup.1 is further heterocycloalkyl with oxygen and/or sulfur, heterocycloalkylmethyl with oxygen and/or sulfur, alkyl-substituted heterocycloalkylmethyl with oxygen and/or sulfur, andR.sup.2 is alkyl, alkoxy, trimethylsilyl, cycloalkyl, alkylthio,and plant-physiologically tolerated salts thereof, and fungicides containing these compounds.

    摘要翻译: 通式I的N,N'-二取代的哌嗪(1)其中基团是不饱和的(=)或饱和的( - ),取代基R 1,R 2和A具有以下含义:A是 - , - CH =,-CH 2 - , - CH 2 -CH 2 - ,R 1是烷基,烯基,炔基,环烷基,环烯基,烷基环烷基,环烯基烷基,烷基环烯基,双环烷基,双环烷基烷基或烷基双环烷基,这些基团是未取代的或被羟基,卤素,烷氧基或三烷基甲硅烷基 ,R 1为氧和/或硫的杂环烷基,与氧和/或硫的杂环烷基甲基,与氧和/或硫的烷基取代的杂环烷基甲基,R 2为烷基,烷氧基,三甲基甲硅烷基,环烷基,烷硫基和植物生理耐受盐 和含有这些化合物的杀真菌剂。

    Preparation of carboxylic esters
    37.
    发明授权
    Preparation of carboxylic esters 失效
    羧酸酯的制备

    公开(公告)号:US5412120A

    公开(公告)日:1995-05-02

    申请号:US158361

    申请日:1993-11-29

    CPC分类号: C07C67/475 C07D309/08

    摘要: A process for preparing monocarboxylic esters of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 -cyclo-alkyl acyl, aryl or C.sub.7 -C.sub.20 -aralkyl or together --(CH.sub.2).sub.n --X--(CH.sub.2).sub.m --,X is methylene, oxygen, sulfur, NH or NR.sup.3,R.sup.3 is C.sub.1 -C.sub.12 -alkyl, andn and m are each from 0 to 8, comprises reacting geminal dicarboxylic esters of the general formula II ##STR2## where R.sup.1 to R.sup.3 are each as defined above, at from 150.degree. to 400.degree. C. in the presence of catalysts.

    摘要翻译: 一种制备通式I的单羧酸的方法,其中R 1和R 2各自为氢,C 1 -C 12 - 烷基,C 3 -C 8 - 环烷基酰基,芳基或C 7 -C 20 - 芳烷基或一起 - (CH 2 )nX-(CH 2)m - ,X是亚甲基,氧,硫,NH或NR 3,R 3是C 1 -C 12烷基,n和m各自为0至8,包括使通式II的偕二羧酸酯 其中R 1至R 3各自如上所定义,在150℃至400℃下,在催化剂存在下。