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    Process for the preparation of 4-acylamino-2-aminoalkoxybenzenes
    1.
    发明授权
    Process for the preparation of 4-acylamino-2-aminoalkoxybenzenes 失效
    4-酰氨基-2-氨基烷氧基苯的制备方法

    公开(公告)号：US5047586A

    公开(公告)日：1991-09-10

    申请号：US571505

    申请日：1990-08-22

    申请人： Hartmut Heise ,  Manfred Hintzmann

    发明人： Hartmut Heise ,  Manfred Hintzmann

    IPC分类号： B01J23/755 ,  C07B61/00 ,  C07C231/02 ,  C07C233/43

    CPC分类号： C07C233/43 ,  C07C231/02

    摘要： A process for the preparation of 4-acylamino-2-aminoalkoxybenzenes of the general formula (1) ##STR1## in which R denotes an alkyl-C.sub.1 -C.sub.6 - or alkoxy-C.sub.1 -C.sub.4 -alkylene-C.sub.1 -C.sub.4 group and R' denotes a methyl or ethyl group, by pumping a solution or suspension of a 2,4-dinitroalkoxybenzene of the general formula (2) ##STR2## in which R has the abovementioned meaning, in a butyl acetate into a stirred suspension of a nickel catalyst on a kieselguhr carrier in butyl acetate, which has been initially introduced into an autoclave, at a hydrogen pressure of about 5 to about 50 bar, and a temperature of about 60.degree. to about 120.degree. C., at a rate which corresponds to the rate of hydrogenation of 2,4-dinitroalkoxybenzene to 2,4-diaminoalkoxybenzene, dehydrating the reduction solution by azeotropic distillation, after the hydrogenation, and acylating the resulting 2,4-diaminoalkoxybenzene with about 0.90 to 0.99 mole of the anhydride of an alkylmonocarboxylic acid having 2 to 3 carbon atoms, relative to 1 mole of 2,4-diaminoalkoxybenzene, at about -5.degree. to about +15.degree. C.

    摘要翻译： 一种制备通式（1）的4​​-酰氨基-2-氨基烷氧基苯的方法，其中R表示烷基-C 1 -C 6 - 或烷氧基-C 1 -C 4 - 亚烷基-C 1 -C 4基团 并且R'表示甲基或乙基，通过将乙酸丁酯中的具有上述含义的通式（2）的通式（2）2,4-二硝基烷氧基苯的溶液或悬浮液泵入 将镍催化剂在最初引入高压釜中的乙酸丁酯的硅藻土载体上搅拌悬浮在约5至约50巴的氢气压力和约60℃至约120℃的温度下，在 对应于2,4-二硝基烷氧基苯氢化为2,4-二氨基烷氧基苯的速率，氢化后通过共沸蒸馏使还原溶液脱水，并将所得的2,4-二氨基烷氧基苯用约0.90〜0.99摩尔的 具有2至3个碳原子的烷基单羧酸的酸酐相对 在约-5℃至约+15℃下加入1摩尔2,4-二氨基烷氧基苯

    Process for the preparation of o-nitrophenetole
    2.
    发明授权
    Process for the preparation of o-nitrophenetole 失效
    制备邻硝基苯甲醚的方法

    公开(公告)号：US4954657A

    公开(公告)日：1990-09-04

    申请号：US267170

    申请日：1988-11-04

    申请人： Hartmut Heise ,  Manfred Hintzmann

    发明人： Hartmut Heise ,  Manfred Hintzmann

    IPC分类号： C07B61/00 ,  B01J31/02 ,  C07C67/00 ,  C07C201/00 ,  C07C205/19 ,  C07C205/37

    CPC分类号： C07C201/12

    摘要： A process for the preparation of o-nitrophenetole by allowing about 1.05 to about 1.4 mole of ethanol to act on 1 mole of o-nitrochlorobenzene in the presence of a phase-transfer catalyst in approximately 40 to approximately 70 percent by weight alkali metal hydroxide solution at temperatures from about 50.degree. to about 80.degree. C. in such a way that the ethanol concentration in the reaction mixture does not exceed 1.5 percent by weight throughout the course of the reaction.

    摘要翻译： 在约40至约70重量％的碱金属氢氧化物溶液中，在相转移催化剂存在下，通过使约1.05至约1.4摩尔的乙醇作用于1摩尔邻硝基氯苯上，制备邻硝基苯甲醚的方法 在约50℃至约80℃的温度下，使反应混合物中的乙醇浓度在整个反应过程中不超过1.5重量％。

    Process for the preparation of 2,4-dinitrophenyl ethers
    6.
    发明授权
    Process for the preparation of 2,4-dinitrophenyl ethers 失效
    2,4-二硝基苯醚的制备方法

    公开(公告)号：US4847426A

    公开(公告)日：1989-07-11

    申请号：US198285

    申请日：1988-05-25

    申请人： Dieter Heck ,  Hartmut Heise ,  Manfred Hintzmann

    发明人： Dieter Heck ,  Hartmut Heise ,  Manfred Hintzmann

    IPC分类号： C07C205/38 ,  C07C67/00 ,  C07C201/00 ,  C07C201/12 ,  C07C205/31 ,  C07C205/37

    CPC分类号： C07C201/12

    摘要： A process for the preparation of 2,4-dinitrophenyl ethers of the general formula (1) ##STR1## in which R denotes an alkyl(C.sub.1 -C.sub.6) or alkoxy(C.sub.1 -C.sub.4)alky(C.sub.1 -C.sub.4) group by reacting 1 mole of 2,4-dinitrochlorobenzene in the anhydrous alcohol which is required for the ether formation and is of the general formula (2)R--OH (2)in which R has the abovementioned meaning, in the presence of 1.0 to 3.0 mole of an anhydrous alkali metal carbonate, at temperatures of 20.degree. C. to 150.degree. C., where appropriate under pressure.

    摘要翻译： 一种制备通式（1）的2,4-二硝基苯基醚的方法，其中R表示烷基（C1-C6）或烷氧基（C1-C4）烷基（C1-C4）基团 通过使1摩尔2,4-二硝基氯苯在醚形成所需的无水醇中反应，并具有通式（2）R-OH（2），其中R具有上述含义，在1.0〜 3.0摩尔无水碱金属碳酸盐，温度为20℃至150℃，适当时在压力下。

    Process for the continuous manufacture of 3-nitro-4-acetylamino-toluene and corresponding apparatus
    7.
    发明授权
    Process for the continuous manufacture of 3-nitro-4-acetylamino-toluene and corresponding apparatus 失效
    连续制备3-硝基-4-乙酰氨基 - 甲苯和相应设备的方法

    公开(公告)号：US4220601A

    公开(公告)日：1980-09-02

    申请号：US908360

    申请日：1978-05-22

    申请人： Max Schneider ,  Lothar Schmitt ,  Hartmut Heise

    发明人： Max Schneider ,  Lothar Schmitt ,  Hartmut Heise

    IPC分类号： C07C233/15 ,  C07C67/00 ,  C07C231/00 ,  C07C231/12 ,  C07C103/375

    CPC分类号： C07C231/00

    摘要： 3-Nitro-4-acetamino-toluene is obtained by introducing continuously a solution of 4-acetamino-toluene in sulfuric acid and, thereafter, aqueous 40 to 65% (by weight) nitric acid into the circulating reaction mixture. This process is advantageously performed in a device consisting of a closed circuit reactor, two inlets arranged successively in the direction of the product stream, a cooler and an outlet.

    摘要翻译： 通过将4-乙酰氨基 - 甲苯的溶液在硫酸中连续引入，然后将40-65％（重量）的硝酸水溶液循环进入循环反应混合物中，得到3-硝基-4-乙酰氨基 - 甲苯。 该方法有利地在由闭路反应器，在产品流方向上连续排列的两个入口，冷却器和出口组成的装置中进行。