Preparation of halomethylbenzoyl cyanides
    1.
    发明授权
    Preparation of halomethylbenzoyl cyanides 失效
    卤甲基苯甲酰氰的制备

    公开(公告)号:US5780665A

    公开(公告)日:1998-07-14

    申请号:US836209

    申请日:1997-05-06

    CPC分类号: C07C253/14

    摘要: Halomethylbenzoyl cyanides I PH--CO--CN (I) where Ph is phenyl which is substituted by chloromethyl or bromomethyl and may cary 1-4 other rradicals, are prepared from halomethylbenzoyl chlorides II PH--CO--Cl (II), by reacting II with a cyanide-donating compound in the presence of a Lewis acid, if required in an inert organic solvent or diluent, and then isolating the product. The halomethylbenzoyl cyanides I are important intermediates for synthesizing crop protection agents.

    摘要翻译: PCT No.PCT / EP95 / 04463。 371日期:1997年5月6日 102(e)日期1997年5月6日PCT提交1995年11月14日PCT公布。 公开号WO96 / 16023 日期:1996年5月30日由甲基苯甲酰氯II PH-CO-Cl(II)制备苯甲​​酰基苯甲酰氰I PH-CO-CN(I),其中Ph是被氯甲基或溴甲基取代并且可以被1-4个其它取代基取代的苯基, 通过在路易斯酸存在下使II与氰化物供体化合物反应,如果需要,在惰性有机溶剂或稀释剂中,然后分离产物。 卤代甲基苯甲酰氰I是合成作物保护剂的重要中间体。

    Preparation of halomethylbenzoyl cyanides and novel halomethylbenzoyl
cyanides
    3.
    发明授权
    Preparation of halomethylbenzoyl cyanides and novel halomethylbenzoyl cyanides 失效
    制备卤代甲基苯甲酰氰和新的卤代甲基苯甲酰氰

    公开(公告)号:US5446199A

    公开(公告)日:1995-08-29

    申请号:US216416

    申请日:1994-03-23

    CPC分类号: C07C255/40 C07C253/14

    摘要: A process for preparing halomethylbenzoyl cyanides IPh-CO-CN I(Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides IIPh-CO-Cl IIwith an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' ##STR1## (X=halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, CF.sub.3, C.sub.1 -C.sub.5 -alkyl-(C.sub.1 -C.sub.5 -alkyl)hydroxyimino or C.sub.1 -C.sub.5 -alkyl-(C.sub.2 -C.sub.5 -alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described.The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.

    摘要翻译: 制备卤代甲基苯甲酰基氰化物I Ph-CO-CNI(Ph =被氯甲基或溴甲基取代的苯基,如果需要,还可以另外携带1-4个基团),卤代甲基苯甲酰氯II Ph-CO-ClII与碱金属 氰化物或过渡金属氰化物,如果合适,在有机稀释剂中,和新的卤代甲基苯甲酰氰I'(X =卤素,C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,CF 3,C 1 -C 5烷基 - ( C 1 -C 5 - 烷基)羟基亚氨基或C 1 -C 5 - 烷基 - (C 2 -C 5 - 烯基)羟基亚氨基; m = 0至4,Y =氯甲基或溴甲基)。 卤代甲基苯甲酰氰I是合成植物保护剂的重要中间体。

    Preparation of halomethylbenzoly cyanides and novel halomethylbenzoyl
cyanides
    4.
    发明授权
    Preparation of halomethylbenzoly cyanides and novel halomethylbenzoyl cyanides 失效
    卤代甲基苯并氰化物和新型卤代甲基苯甲酰氰的制备

    公开(公告)号:US5510528A

    公开(公告)日:1996-04-23

    申请号:US406056

    申请日:1995-03-17

    CPC分类号: C07C255/40 C07C253/14

    摘要: A process for preparing halomethylbenzoyl cyanides IPh-CO-CN I(Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides IIPh-CO-Cl IIwith an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' ##STR1## (X=halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, CF.sub.3, C.sub.1 -C.sub.5 -alkyl-(C.sub.1 -C.sub.5 -alkyl)hydroxyimino or C.sub.1 -C.sub.5 -alkyl-(C.sub.2 -C.sub.5 -alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described.The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.

    摘要翻译: 制备卤代甲基苯甲酰氰的方法I Ph-CO-CN I(Ph =被氯甲基或溴甲基取代的苯基,如果需要,可另外加入1-4个其它基团),卤代甲基苯甲酰氯II Ph-CO-Cl II与 碱金属氰化物或过渡金属氰化物(如果合适的话)在有机稀释剂中,和新的卤代甲基苯甲酰氰I'(X =卤素,C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,CF 3,C 1 -C 5 - 烷基 - (C 1 -C 5 - 烷基)羟基亚氨基或C 1 -C 5 - 烷基 - (C 2 -C 5 - 烯基)羟基亚氨基; m = 0至4,Y =氯甲基或溴甲基)。 卤代甲基苯甲酰氰I是合成植物保护剂的重要中间体。

    Process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates
    8.
    发明申请
    Process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates 有权
    制备2-烷氧基亚甲基-4,4-二氟-3-氧代丁酸烷基酯的方法

    公开(公告)号:US20110004002A1

    公开(公告)日:2011-01-06

    申请号:US12919842

    申请日:2009-02-27

    IPC分类号: C07D231/14 C07C69/66

    摘要: A process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates (VI) where R is methyl or ethyl, from crude reaction mixtures of alkyl 4,4-difluoroacetoacetates (I) by a) reacting where M is a sodium or potassium ion, and without additional solvent to form an enolate (V) b) releasing the corresponding alkyl 4,4-difluoroacetoacetate (I) from the enolate (V) by means of acid, c) removing the salt formed from cation M and acid anion as a solid and d) converting (I), without isolation from the crude reaction mixture, to the alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrate (VI), and the use of (VI) for preparing 1-methyl-3-difluoromethyl-pyrazol-3-ylcarboxyates VII

    摘要翻译: 由烷基4,4-二氟乙酰乙酸酯(I)的粗反应混合物制备R为甲基或乙基的2-烷氧基亚甲基-4,4-二氟-3-氧代丁酸烷基酯(VI)的方法,通过a)使M 钠离子或钾离子,无另外的溶剂以形成烯醇化物(Ⅴ)b)通过酸从烯醇化物(Ⅴ)中释出相应的4,4-二氟乙酰乙酸烷基酯(Ⅰ),c)除去由阳离子M形成的盐 和酸阴离子作为固体,以及d)将(I)从粗反应混合物中分离出来,转化为2-烷氧基亚甲基-4,4-二氟-3-氧代丁酸烷基酯(VI),以及(VI)用于 制备1-甲基-3-二氟甲基 - 吡唑-3-基羧酸酯VII

    Method for production of aryl-substituted annelated pyrimidines
    10.
    发明申请
    Method for production of aryl-substituted annelated pyrimidines 审中-公开
    芳基取代的环状嘧啶的制备方法

    公开(公告)号:US20100087640A1

    公开(公告)日:2010-04-08

    申请号:US12521877

    申请日:2008-01-10

    IPC分类号: C07D487/04

    CPC分类号: C07D487/04

    摘要: The present invention relates to a process for preparing aryl-substituted fused pyrimidines of the general formula (I) in which L1 to L5 are H, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy etc.; Y1 to Y3 are C—RY or N; RY is H or optionally substituted C1-C4-alkyl or two adjacent RY together form a ring; X is OH, Cl or Br; which comprises (i) the reaction of a 2-phenylmalonate with a compound (III) or a tautomer thereof, in the presence of a suitable base, where the alcohol, released during the reaction, of the formula R—OH is continuously removed from the reaction mixture under reduced pressure; giving a compound of the formula (I) or a salt thereof in which X is OH, and, if X in the compounds of the general formula (I) is chlorine or bromine, (ii) the reaction of the compounds of the formula (I) obtained in step (i) or the salts with a halogenating agent.

    摘要翻译: 本发明涉及制备通式(I)的芳基取代的稠合嘧啶的方法,其中L 1至L 5为H,卤素,CN,NO 2,C 1 -C 4烷基,C 1 -C 4卤代烷基,C 1 -C 4 - 烷氧基,C1-C4-卤代烷氧基等; Y1至Y3为C-RY或N; RY为H或任选取代的C 1 -C 4烷基或两个相邻的RY一起形成环; X是OH,Cl或Br; 其包括(i)2-苯基丙二酸酯与化合物(III)或其互变异构体在合适的碱的存在下反应,其中反应期间释放的醇与式R-OH的连续从 减压下的反应混合物; 得到其中X是OH的式(I)化合物或其盐,并且如果通式(I)的化合物中的X是氯或溴,则(ii)式(I)化合物 I)或与卤化剂的盐。