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    Process for the selective esterification of tertiary alcohol by an acid anhydride using a reusable solid catalyst
    1.
    发明授权
    Process for the selective esterification of tertiary alcohol by an acid anhydride using a reusable solid catalyst 失效
    使用可重复使用的固体催化剂通过酸酐选择性酯化叔醇的方法

    公开(公告)号：US06420596B1

    公开(公告)日：2002-07-16

    申请号：US09725642

    申请日：2000-11-29

    申请人： Vasant Ramchandra Choudhary ,  Kshudiram Mantri ,  Suman Kumar Jana

    发明人： Vasant Ramchandra Choudhary ,  Kshudiram Mantri ,  Suman Kumar Jana

    IPC分类号： C07C6702

    CPC分类号： C07C67/08 ,  C07C69/003 ,  C07C69/14 ,  C07C69/157 ,  C07C69/78

    摘要： This invention provides a process for the selective esterfication of a tertiary alcohol(I) by an acid anhydride(II) to produce corresponding tertiary ester(III) and carboxylic acid(V), using a reusable solid catalyst(IV) comprising one or more halides of indium, gallium, zinc and iron. The process comprises: (i) contacting a mixture of (I) and (II) in the absence or presence of a non aqueous solvent with the fine particles of (IV) in a stirred batch reactor provided with a reflux water condenser at atmospheric pressure at the reaction conditions, such that the mole ratio of (II) to (I) is in the range from about 0.1 to about 10.0; the weight ratio of (IV) to (I+II) is in the range from about 0.005 to about 0.5; the reaction temperature is below about 80° C., and the reaction period is in the range from about 0.1 h to about 50 h; (ii) removing the solid catalyst(IV) from the reaction mixture by filtration; and (iii) reusing the separated solid catalyst for subsequent batch of the process.

    摘要翻译： 本发明提供一种通过酸酐（II）选择性酯化叔醇（I）以产生相应的叔酯（III）和羧酸（V）的方法，使用包含一种或多种的可重复使用的固体催化剂（IV） 铟，镓，锌和铁的卤化物。 该方法包括：（i）在不存在或不存在非水溶剂的情况下，将（I）和（II）的混合物与（IV）的细颗粒在设置有回流水冷凝器的搅拌间歇反应器中在大气压下接触 在反应条件下使得（II）与（I）的摩尔比在约0.1至约10.0的范围内; （IV）至（I + II）的重量比在约0.005至约0.5的范围内; 反应温度低于约80℃，反应时间为约0.1小时至约50小时; （ii）通过过滤从反应混合物中除去固体催化剂（IV）; 和（iii）将分离的固体催化剂重新用于后续批次的方法。

    Supported catalyst useful for Friedel-Crafts reactions and process for the preparation of aralkylated aromatic compounds using the catalyst
    2.
    发明授权
    Supported catalyst useful for Friedel-Crafts reactions and process for the preparation of aralkylated aromatic compounds using the catalyst 失效
    用于Friedel-Crafts反应的负载催化剂和使用催化剂制备芳烷基化芳族化合物的方法

    公开(公告)号：US06180557B2

    公开(公告)日：2001-01-30

    申请号：US09209834

    申请日：1998-12-11

    申请人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana ,  B-Phani Kiran

    发明人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana ,  B-Phani Kiran

    IPC分类号： B01J2706

    CPC分类号： B01J27/125 ,  B01J23/08 ,  B01J27/128 ,  C07C45/46

    摘要： A supported catalyst and a process for the preparation of the catalyst, the catalyst containing mixed metal oxides or halides deposited on porous catalyst carriers or supports, useful for heterogeneously or solid catalyzed Friedel-Crafts reactions such as alkylation, aralkylation, acylation, or aroylation of aromatic compounds in the preparation of fine chemicals. The supported catalyst has high activity for the Friedel-Crafts reactions when the aromatic ring activating groups are present in the aromatic ring to be aralkylated, acylated or aroylated, and also when the ring activating group is absent or when aromatic ring deactivating groups are present in the aromatic ring to aralkylated, acylated or aroylated, so that the reaction temperature is low and/or the time for completing the reaction is short. The catalyst can be separated and used repeatedly for catalytic reactions.

    摘要翻译： 负载催化剂和催化剂的制备方法，催化剂含有沉积在多孔催化剂载体或载体上的混合金属氧化物或卤化物，可用于非均相或固体催化的Friedel-Crafts反应，例如烷基化，芳烷基化，酰化或芳基化 芳香族化合物在精细化学品的制备中。 当芳环活性基团存在于待芳烷基化，酰化或酰化的芳环中时，以及当环活化基团不存在或芳环失活基团存在时，负载型催化剂对于Friedel-Crafts反应具有高活性 芳环进行芳烷基化，酰化或丙烯酰化，使反应温度低，和/或完成反应的时间短。 催化剂可以分离并重复使用用于催化反应。

    Process for the liquid phase acylation of aromatic compounds
    3.
    发明授权
    Process for the liquid phase acylation of aromatic compounds 失效
    芳香族化合物的液相酰化方法

    公开(公告)号：US06459000B1

    公开(公告)日：2002-10-01

    申请号：US09817747

    申请日：2001-03-26

    申请人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana

    发明人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana

    IPC分类号： C07C4545

    CPC分类号： C07C45/46 ,  Y02P20/582 ,  C07C49/784 ,  C07C49/788 ,  C07C49/825 ,  C07C49/83 ,  C07C49/84

    摘要： The present invention provides a liquid phase process for the acylation of aromatic compound by an acylating agent of the formula (R5R6R7)—Y—Z to obtain the corresponding acylated compound using a solid catalyst comprising a metal oxide of the formula AOx with or without a catalyst support, wherein A is a metallic element selected from Ga, In, Ti, Fe and a mixture of two or more thereof, and x is the number of oxygen atoms required to fulfil the valance requirement of A, wherein the catalyst is pretreated with a dry gas comprising a hydrogen halide in the presence or absence of the aromatic compound to be acylated, contacting the hydrogen halide pretreated catalyst with a liquid reaction mixture comprising the aromatic compound and the acylating agent, cooling the reaction mixture, removing the catalyst from the reaction mixture and then separating the reaction products from the reaction mixture.

    摘要翻译： 本发明提供了通过式（R5R6R7）-YZ的酰化剂使芳族化合物酰化的液相方法，以使用包含具有或不具有催化剂载体的式AOx的金属氧化物的固体催化剂获得相应的酰化化合物 其中A是选自Ga，In，Ti，Fe及其两种或更多种的混合物的金属元素，x是满足A的价格要求所需的氧原子数，其中催化剂用干燥 在待酰化的芳族化合物存在或不存在下，将卤化氢气体与卤化氢预处理的催化剂与包含芳族化合物和酰化剂的液体反应混合物接触，冷却反应混合物，从反应混合物中除去催化剂 然后将反应产物与反应混合物分离。

    Process for the preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst
    4.
    发明授权
    Process for the preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst 失效
    使用可重复使用的碱性阴离子粘土催化剂使用Friedel-Crafts反应制备取代的芳族化合物的方法

    公开(公告)号：US06548722B1

    公开(公告)日：2003-04-15

    申请号：US09685682

    申请日：2000-10-10

    申请人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana

    发明人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana

    IPC分类号： C07C30900

    CPC分类号： C07C41/30 ,  C07C2/861 ,  C07C2/864 ,  C07C45/46 ,  C07C201/12 ,  C07C2521/10 ,  C07C2523/08 ,  C07C2527/236 ,  C07C2603/24 ,  C07C15/16 ,  C07C49/784 ,  C07C49/83 ,  C07C49/84 ,  C07C49/786 ,  C07C205/06 ,  C07C15/12 ,  C07C15/28 ,  C07C43/205

    摘要： A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula: [(M2−)1−x(M3+)x(OH)2]x+[Ay−]x/yqH2O where M2+ is a divalent cation selected from Mg2+, Zn2+, Ni2+, Co2+, Mn2+, Cu2+ or a mixture thereof; M3+ is a trivalent cation selected from Ga3+, In3+ Al3+, Fe3+ Cr3+ or a mixture thereof; x is a mole fraction of trivalent cations in the range of about 0.05 to about 0.5; 0 is oxygen; H is hydrogen; Ay− is an anion; y minus is an anionic negative charge having a value of 1 minus or 2 minus; and q is a number of water molecules, as the water of hydration; and involving following steps: i. pretreating said catalyst by contacting it with a halogen containing compound in the presence or absence of a non-aqueous solvent and optionally washing the pretreated catalyst with non-aqueous solvent or liquid aromatic compound to be alkylated or acylated; and then ii. contacting a liquid reaction mixture comprising said aromatic compound and said alkylating or acylating agent in the presence or absence of a non-aqueous solvent with the catalyst obtained from step (i) in a stirred batch reactor fitted with a reflux condenser under vigorous stirring, in the presence or absence of an inert gas bubbling through the reaction mixture, at effective reaction conditions; iii. cooling the reaction mixture to a temperature about 30° C., removing said catalyst from the reaction mixture by filtration and then separating the reaction products from the reaction mixture, and optionally washing the used catalyst by non-aqueous solvent, and if desired, iv. reusing the used catalyst directly with or without drying for the subsequent reaction batch avoiding step (i), is disclosed.

    摘要翻译： 使用由下式表示的水滑石型碱性阴离子粘土催化剂，使用Friedel-Crafts型液相烷基化或芳族化合物酰化的方法：其中M2 +是选自Mg2 ​​+，Zn2 +，Ni2 +，Co2 +，Mn2 +，Cu2 +或 其混合物; M3 +是选自Ga3 +，In3 + Al3 +，Fe3 + Cr3 +或其混合物的三价阳离子; x是三价阳离子在约0.05至约0.5范围内的摩尔分数; 0是氧; H是氢; Ay-是阴离子; y minus是具有值1或2减去的阴离子负电荷; 和q是水分子的数量，作为水合水; 并涉及以下步骤：i。 在存在或不存在非水溶剂的情况下，通过使其与含卤素的化合物接触来预处理所述催化剂，并任选地用待进行烷基化或酰化的非水溶剂或液体芳族化合物洗涤预处理的催化剂; 然后。 在非水溶剂存在或不存在下，将含有所述芳族化合物和所述烷基化或酰化剂的液体反应混合物与步骤（i）获得的催化剂在剧烈搅拌下在装有回流冷凝器的搅拌间歇式反应器中接触， 在有效的反应条件下存在或不存在通过反应混合物鼓泡的惰性气体; iii。 将反应混合物冷却至约30℃的温度，通过过滤从反应混合物中除去所述催化剂，然后将反应产物与反应混合物分离，并任选地通过非水溶剂洗涤所用催化剂，如果需要，将iv 。 公开了直接使用或不用干燥后续反应批次的用过的催化剂，以避免步骤（i）。

    Process for the acylation of aromatic compounds using a reusable solid catalyst comprising indium halide
    5.
    发明授权
    Process for the acylation of aromatic compounds using a reusable solid catalyst comprising indium halide 失效
    使用包含卤化铟的可重复使用的固体催化剂来酰化芳族化合物的方法

    公开(公告)号：US06437191B1

    公开(公告)日：2002-08-20

    申请号：US09724500

    申请日：2000-11-28

    申请人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana ,  Nilesh Sudhir Patil

    发明人： Vasant Ramchandra Choudhary ,  Suman Kumar Jana ,  Nilesh Sudhir Patil

    IPC分类号： C07C4546

    CPC分类号： C07C45/46 ,  B01J21/16 ,  B01J27/125 ,  B01J29/0308 ,  B01J29/185 ,  B01J29/7057 ,  B01J35/0006 ,  B01J37/0201 ,  B01J2229/18 ,  Y02P20/582 ,  Y02P20/588 ,  C07C49/784 ,  C07C49/84 ,  C07C49/788 ,  C07C49/76

    摘要： A process for the liquid phase acylation of aromatic compounds by acyl halides to corresponding acylated aromatic compounds, using a reusable solid catalyst comprising indium halide represented by a formula: MxIn1−xAy(a)/s wherein, S is a porous catalyst support selected from clays, zeolites and zeolite-like materials; M is a metallic chemical element(s) selected from the group consisting of Ga (gallium), Fe (iron), Zn (zinc), Ti (titanium) and a mixture of two or more thereof; In is a metallic chemical element, indium; A is a non-metallic chemical element selected from the group consisting of Cl (chlorine), Br (bromine), I (iodine), F (fluorine) and a mixture of two or more thereof; is mole fraction of M in the metallic elements in the range from 0.01 to 0.99; y is the number of A atoms required to satisfy the valence requirement of MxIn1−x; and a is the loading of MxIn1−x A on the support, S, in the range from 0.05 mmol.g−1 to 5.0 mmol.g−1, at the following reaction conditions: weight ratio of catalyst to acylating agent in the range trom about 0.05 to about 5.0; mole ratio of aromatic compound to acylating agent in the range from about 0.1 to about 100; weight ratio of non-aqueous solvent to aromatic compound in the range from zero to about 100; reaction temperature in the range from about 10° C. to about 300° C.; pressure at least 1.0 atm; gas hourly space velocity of inert gas bubbled through the liquid reaction mixture in the range from zero h−1 to about 5000 h−1; and reaction period in the range from about 0.02 h to about 100 h, is provided.

    摘要翻译： 使用包含由下式表示的卤化铟的可重复使用的固体催化剂，通过酰基卤将芳族化合物液相酰化成相应的酰化芳族化合物的方法：其中，S是选自粘土，沸石和沸石样材料的多孔催化剂载体 ; M是选自Ga（镓），Fe（铁），Zn（锌），Ti（钛）及其两种或更多种的混合物的金属化学元素; In是金属化学元素 ，铟; A是选自Cl（氯），Br（溴），I（碘），F（氟）及其两种或更多种的混合物的非金属化学元素; M的摩尔分数 在金属元素的范围为0.01〜0.99; y为满足MxIn1-x的化合价要求所需的A原子数; anda是在以下反应条件下，载体上的MxIn1-xA载体在0.05mmol.g-1至5.0mmol.g-1的范围内，催化剂与酰化剂的重量比在trom范围内 约0.05至约5.0; 芳族化合物与酰化剂的摩尔比在约0.1至约100的范围内; 非水溶剂与芳族化合物的重量比在0至约100的范围内; 反应温度在约10℃至约300℃的范围内; 压力至少为1.0大气压; 惰性气体的气时空速通过液体反应混合物在零h-1至约5000h -1范围内鼓泡; 并提供约0.02小时至约100小时的反应时间。

    Process for preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst
    8.
    发明授权
    Process for preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst 失效
    使用可重复使用的碱性阴离子粘土催化剂制备采用Friedel-Crafts反应的取代芳族化合物的方法

    公开(公告)号：US06525226B2

    公开(公告)日：2003-02-25

    申请号：US10187183

    申请日：2002-07-01

    申请人： Vasant Ram chandra Choudhary ,  Suman Kumar Jana

    发明人： Vasant Ram chandra Choudhary ,  Suman Kumar Jana

    IPC分类号： C07C4530

    CPC分类号： C07C41/30 ,  C07C2/861 ,  C07C2/864 ,  C07C45/46 ,  C07C201/12 ,  C07C2521/10 ,  C07C2523/08 ,  C07C2527/236 ,  C07C2603/24 ,  C07C15/16 ,  C07C49/784 ,  C07C49/83 ,  C07C49/84 ,  C07C49/786 ,  C07C205/06 ,  C07C15/12 ,  C07C15/28 ,  C07C43/205

    摘要： A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula: [(M2+)1−x(M3+)x(OH)2]x+[Ay−]x/y q H2O where M2+ is a divalent cation selected from Mg2+, Zn2+, Ni2+, Co2+, Mn2+, Cu2+ or a mixture thereof, M3+ is a trivalent cation selected from Ga3+, In3+ Al3+, Fe3+ Cr3+ or a mixture thereof; x is a mole fraction of trivalent cations in the range of about 0.05 to about 0.5; O is oxygen; H is hydrogen; Ay− is an anion; y minus is an anionic negative charge having a value of 1 minus or 2 minus; and q is a number of water molecules, as the water of hydration; and involving following steps: i. pretreating said catalyst by contacting it with a halogen containing compound in the presence or absence of a non-aqueous solvent and optionally washing the pretreated catalyst with non-aqueous solvent or liquid aromatic compound to be alkylated or acylated; and then ii. contacting a liquid reaction mixture comprising said aromatic compound and said alkylating or acylating agent in the presence or absence of a non-aqueous solvent with the catalyst obtained from step (i) in a stirred batch reactor fitted with a reflux condenser under vigorous stirring, in the presence or absence of an inert gas bubbling through the reaction mixture, at effective reaction conditions; iii. cooling the reaction mixture to a temperature about 30° C., removing said catalyst from the reaction mixture by filtration and then separating the reaction products from the reaction mixture, and optionally washing the used catalyst by non-aqueous solvent; and if desired, iv. reusing the used catalyst directly with or without drying for the subsequent reaction batch avoiding step (i), is disclosed.

    摘要翻译： 使用由下式表示的水滑石型碱性阴离子粘土催化剂，使用Friedel-Crafts型液相烷基化或芳族化合物酰化的方法：其中M2 +是选自Mg2 ​​+，Zn2 +，Ni2 +，Co2 +，Mn2 +，Cu2 +或 其混合物，M3 +是选自Ga3 +，In3 + Al3 +，Fe3 + Cr3 +或其混合物的三价阳离子; x是三价阳离子在约0.05至约0.5范围内的摩尔分数; O是氧; H是氢; Ay-是阴离子; y minus是具有值1或2减去的阴离子负电荷; 和q是水分子的数量，作为水合水; 并涉及以下步骤：i。 在存在或不存在非水溶剂的情况下，通过使其与含卤素的化合物接触来预处理所述催化剂，并任选地用待进行烷基化或酰化的非水溶剂或液体芳族化合物洗涤预处理的催化剂; 然后。 在非水溶剂存在或不存在下，将含有所述芳族化合物和所述烷基化或酰化剂的液体反应混合物与步骤（i）获得的催化剂在剧烈搅拌下在装有回流冷凝器的搅拌间歇式反应器中接触， 在有效的反应条件下存在或不存在通过反应混合物鼓泡的惰性气体; iii。 将反应混合物冷却至约30℃的温度，通过过滤从反应混合物中除去所述催化剂，然后将反应产物与反应混合物分离，并任选地通过非水溶剂洗涤所用催化剂; 如果需要，iv。 公开了直接使用或不用干燥后续反应批次的用过的催化剂，以避免步骤（i）。