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    Process for the preparation of 4-nitrophenetol
    43.
    发明授权
    Process for the preparation of 4-nitrophenetol 失效
    制备4-硝基苯甲酸的方法

    公开(公告)号：US4782190A

    公开(公告)日：1988-11-01

    申请号：US22834

    申请日：1987-03-06

    Applicant: Josef Kasbauer ,  Karlfried Wedemeyer

    Inventor： Josef Kasbauer ,  Karlfried Wedemeyer

    IPC: C07B61/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C201/00 ,  C07C201/12 ,  C07C205/37 ,  C07C79/35 ,  C07C41/16

    CPC classification number: C07C201/12

    Abstract: 4-Nitrophenetol is prepared by reaction of 4-chloronitrobenzene with ethanol and alkali metal hydroxides in the presence of phase-transfer catalysts by carrying out the reaction at temperatures from 60.degree. to 95.degree. C. and under pressure in the presence of oxygen-containing gases diluted with inert gases, there being at the start of the reaction 0.2 to 1.0 mol of alkali metal hydroxide metered each hour into the reaction mixture for each 1 mol of 4-chloronitrobenzene.

    Abstract translation: 通过在相转移催化剂的存在下通过4-氯硝基苯与乙醇和碱金属氢氧化物的反应制备4-硝基苯并吡喃，通过在60-95℃的温度和在含氧的 用惰性气体稀释的气体，在反应开始时，每1小时向反应混合物中计量0.2至1.0摩尔碱金属氢氧化物，每1摩尔4-氯硝基苯。

    Substituted diphenyl ethers, herbicides containing these compounds and their use as herbicides
    46.
    发明授权
    Substituted diphenyl ethers, herbicides containing these compounds and their use as herbicides 失效
    取代的二苯醚，含有这些化合物的除草剂及其作为除草剂的用途

    公开(公告)号：US4744812A

    公开(公告)日：1988-05-17

    申请号：US707190

    申请日：1985-03-04

    Applicant: Adolf Parg ,  Bruno Wuerzer ,  Gerhard Hamprecht

    Inventor： Adolf Parg ,  Bruno Wuerzer ,  Gerhard Hamprecht

    IPC: C07C309/63 ,  A01N43/08 ,  C07C43/29 ,  C07C43/295 ,  C07C43/315 ,  C07C59/66 ,  C07C67/00 ,  C07C69/708 ,  C07C69/712 ,  C07C201/00 ,  C07C205/38 ,  C07C205/42 ,  C07C205/59 ,  C07C235/06 ,  C07C255/37 ,  C07C255/53 ,  C07C271/06 ,  C07C301/00 ,  C07C307/02 ,  C07C317/00 ,  C07C317/04 ,  C07C317/22 ,  C07C317/46 ,  C07C323/20 ,  C07C323/52 ,  C07C323/56 ,  C07C323/60 ,  C07C323/67 ,  C07C327/22 ,  C07C333/02 ,  C07D307/12 ,  C07D317/24 ,  C07D339/06 ,  C07F7/18 ,  C07F9/09 ,  C07F9/165 ,  C07F9/24 ,  C07C143/68 ,  C07C147/06 ,  C07C147/14

    CPC classification number: C07F9/2429 ,  C07C205/38 ,  C07C205/42 ,  C07C205/44 ,  C07C255/00 ,  C07C317/00 ,  C07C323/00 ,  C07C323/52 ,  C07C327/22 ,  C07C43/295 ,  C07C43/315 ,  C07C59/66 ,  C07D307/12 ,  C07D317/24 ,  C07D339/06 ,  C07F7/1852 ,  C07F9/094 ,  C07F9/1653

    Abstract: Substituted diphenyl ethers of the formula ##STR1## where Z.sub.1, Z.sub.2 and Z.sub.3 are hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or haloalkylsulfonyl, Z.sub.4 is hydrogen, cyano, alkyl, alkoxy, acetoxy or alkylmercapto, Y is hydrogen, halogen, cyano or nitro, X is oxygen, sulfur, sulfinyl or sulfonyl, and A is hydrogen, unsubstituted or substituted alkyl ##STR2## and can also be sulfonyl ##STR3## when X is oxygen, and, when Z.sub.4 is alkoxy or alkylmercapto, can also be a methylene chain --(CH.sub.2).sub.m -- by which the radicals Z.sub.4 --CH--X-- are bonded to form a ring, R.sub.1 is hydrogen, methyl, ethyl or n-propyl, R.sub.2 is cyano, methoxy, ethoxy or ##STR4## where B is OH, ONa, O--alkyl, unsubstituted or substituted phenoxy, --NH.sub.2, --NH--alkyl or --N(alkyl).sub.2, n is 1, 2 or 3, R.sub.3 and R.sub.4 are hydrogen, halogen, methyl, nitro, cyano, methoxy, carboxyl, trifluoromethyl or an O-propionic acid methyl ester group, R.sub.5 is methyl, ethyl, propyl, chloromethyl, dichloromethyl, trichloromethyl, methoxymethyl, phenyl, nitro-substituted phenyl, alkyl-substituted phenyl or .alpha.-2,4-dichlorophenoxyethyl, R.sub.6 and R.sub.7 are hydrogen, alkyl, alkoxyalkyl, dihalophenyl, cyclohexyl or methoxy, R.sub.8, R.sub.9 and R.sub.10 are methyl, ethyl, n-propyl or n-butyl, R.sub.11 and R.sub.12 are methoxy, ethoxy, thiomethyl, thioethyl, thio-n-propyl, N,N-dimethylamino or N,N-diethylamino, R.sub.13 is methyl, ethyl, phenyl or trifluoromethyl, R.sub.14 and R.sub.15 are hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, n-hexyl, n-heptyl, methoxy, ethoxy or isopropoxy, and m is 2 or 3; and herbicides containing these compounds.

    Abstract translation: 下式的取代的二苯醚其中Z1，Z2和Z3是氢，卤素，硝基，氰基，羧基，烷基，卤代烷基，烷氧基，卤代烷氧基，烷基巯基，卤代烷基巯基，烷基亚磺酰基，卤代烷基亚磺酰基，烷基磺酰基或卤代烷基磺酰基，Z4是氢 氰基，烷基，烷氧基，乙酰氧基或烷基巯基，Y是氢，卤素，氰基或硝基，X是氧，硫，亚磺酰基或磺酰基，A是氢，未取代或取代的烷基， 并且当X是氧时也可以是磺酰基，并且当Z4是烷氧基或烷基巯基时，也可以是基团Z4-CH-X-被键合形成的亚甲基链 - （CH 2）m - 环，R 1是氢，甲基，乙基或正丙基，R 2是氰基，甲氧基，乙氧基或者其中B是OH，ONa，O-烷基，未取代或取代的苯氧基，-NH 2，-NH-烷基或 -N（烷基）2，n为1,2或3，R3和R4为氢，卤素，甲基，硝基，氰基，甲氧基，羧基，三氟甲基或O-丙酸甲酯 酯基，R5是甲基，乙基，丙基，氯甲基，二氯甲基，三氯甲基，甲氧基甲基，苯基，硝基取代的苯基，烷基取代的苯基或α-2,4-二氯苯氧基乙基，R6和R7是氢，烷​​基，烷氧基烷基，二卤代苯基 ，环己基或甲氧基，R8，R9和R10是甲基，乙基，正丙基或正丁基，R11和R12是甲氧基，乙氧基，硫代甲基，硫代乙基，硫代正丙基，N，N-二甲基氨基或N，N - 二乙基氨基，R 13是甲基，乙基，苯基或三氟甲基，R 14和R 15是氢，甲基，乙基，正丙基，异丙基，正丁基，正己基，正庚基，甲氧基，乙氧基或异丙氧基，m是 2或3; 和含有这些化合物的除草剂。

    Process for the preparation of 4,4'-dinitrodibenzyls
    48.
    发明授权
    Process for the preparation of 4,4'-dinitrodibenzyls 失效
    制备4,4'-二硝基二苄基的方法

    公开(公告)号：US4734532A

    公开(公告)日：1988-03-29

    申请号：US871018

    申请日：1986-06-04

    Applicant: Richard Kopp ,  Gerhard Grogler ,  Klaus Konig ,  Manfred Schmidt

    Inventor： Richard Kopp ,  Gerhard Grogler ,  Klaus Konig ,  Manfred Schmidt

    IPC: C07C67/00 ,  C07C201/00 ,  C07C201/12 ,  C07C205/06 ,  C07C205/12 ,  C07C79/10

    CPC classification number: C07C201/12

    Abstract: 4,4'-dinitrodibenzyls are prepared by reaction of 4-nitrotoluenes, in the presence of an organic solvent and/or diluent, with an alkali metal-alcoholate and/or an alkaline earth metal alcoholate, and subsequent treatment of the reaction mixture with an aqueous solution of hypohalous acids and/or their salts or with chlorine, bromine or an aqueous solution of hydrogen peroxide and/or its salts, or with organic or inorganic peracids and/or their salts.

    Abstract translation: 4,4'-二硝基二苄基通过4-硝基甲苯在有机溶剂和/或稀释剂存在下与碱金属醇盐和/或碱土金属醇化物反应制备，随后用反应混合物处理 次卤酸和/或其盐的水溶液或氯，溴或过氧化氢和/或其盐的水溶液，或与有机或无机过酸和/或其盐的水溶液。

    Method for preparing nitrobibenzyl systems
    50.
    发明授权
    Method for preparing nitrobibenzyl systems 失效
    硝基苄基系统的制备方法

    公开(公告)号：US4721821A

    公开(公告)日：1988-01-26

    申请号：US899293

    申请日：1986-08-14

    Applicant: Sven G. B. Andersson

    Inventor： Sven G. B. Andersson

    IPC: B01J31/22 ,  C07C67/00 ,  C07C201/00 ,  C07C201/12 ,  C07C205/06 ,  C07C205/12 ,  C07C205/37 ,  C07C79/10

    CPC classification number: C07C201/12

    Abstract: Method for preparing bibenzyl systems with nitro groups as substituents. Toluene derivates with nitro groups are coupled oxidatively in methanolic alkali solution under influence of metal catalysts. The oxidation is preferably done with air. As catalysts metal acetonylacetonates are used. The metal can be Ni, Cu, Co, Mn, Cr or Ti. This catalyst can be used together with a crown ether. Another suitable catalyst is a metal tetraphenylporphin of porfyrin type where the metal can be Ni, vanadium (V=O) or Fe(FeIII).

    Abstract translation: PCT No.PCT / SE85 / 00533 Sec。 371日期1986年8月14日 102（e）日期1986年8月14日PCT提交1985年12月19日PCT公布。 出版物WO86 / 03743 日期：1986年7月3日。用硝基作为取代基制备联苄系的方法。 用硝基的甲苯衍生物在金属催化剂的影响下在甲醇碱溶液中氧化偶联。 氧化优选用空气进行。 作为催化剂，使用金属丙酮乙酸酯。 金属可以是Ni，Cu，Co，Mn，Cr或Ti。 该催化剂可与冠醚一起使用。 另一种合适的催化剂是其中金属可以是Ni，钒（V = O）或Fe（FeIII））的金属四苯基卟吩。

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