1-monomethoxycarbonyl-3,4,6-trihydroxycarbonylbenzene | 18263-96-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1-monomethoxycarbonyl-3,4,6-trihydroxycarbonylbenzene
• 英文别名: 1,2,4,5-benzenetetracarboxylic acid monomethyl ester；1,2,4,5-benzenetetracarboxylic acid methyl ester；1,2,4,5-benzenetetraic acid monomethyl ester；pyromellitic acid methyl ester；5-Methoxycarbonylbenzene-1,2,4-tricarboxylic acid
• CAS: 18263-96-2
• 化学式: C₁₁H₈O₈
• 分子量: 268.18
• InChiKey: ZGPGKSUOYOKDDO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  138
• 氢给体数：
  3
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  甲醇 、 均苯四甲酸二酐 在 三乙胺 、 水 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 生成 1-monomethoxycarbonyl-3,4,6-trihydroxycarbonylbenzene
  参考文献：
  名称：

  均苯四酸的酯。第一部分：非手性醇的酯：部分和混合的均苯四甲酸酯酯的区域选择性合成，使用原甲酸酯酯对均苯四甲酸酯体系进行定量酯化的酯交换反应机理以及邻苯二甲酸酯二酸酯取代模式的简便合成

  摘要：

  温和的条件和可逆酸酐的形成允许在酯化过程中对均苯四甲酸二酐（PMDA，苯-1,2,4,5-四羧酸二酐）的四个当量羰基进行相对区分，从而导致区域选择性方法产生广泛的部分或全部酯化的产品或在不同位置带有不同酯化基团的产品。均苯四甲酸单酯酸酐在二氯甲烷/三乙胺中由1当量的醇有效形成。在相同条件下，两个不同可以使醇顺序地反应。用2当量的醇，获得通常的间位和对位二酯混合物，通过与HOAc结晶分离。间苯二甲酸和对二苄基均苯四酸酯通过进一步酯化然后氢解而充当其他二酯的区域特异性来源。发现回流的原甲酸三酯能定量在自催化条件下均苯四甲酸体系的酯化; 与预先存在的酯进行的少量酯交换（占总产物的0-5％）归因于可逆酸酐的形成。为了用醇进行一般的酯化反应，使用草酰氯获得了部分酯酰氯。均苯四甲酸三酯在蒸馏时提供邻二酯酸酐，从而提供了进入该系统中最新颖的邻位取代模式的容易途径。通过选择性皂化或通过预先引入一个苄基酯取

  DOI：

  10.1021/jo800543w

文献信息

• Method for hydrogenating organic compounds by means of ru/sio2 catalysts
  申请人：——

  公开号：US20040199033A1

  公开（公告）日：2004-10-07

  In a process for hydrogenating at least one organic compound, the organic compound or compounds is/are brought into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, ruthenium either alone or together with at least one further metal of transition group I, VII or VIII of the Periodic Table applied to a support material based on amorphons silicon dioxide and is obtainable by: i) a single or multiple treatment of a support material based on amorphous silicon dioxide with a halogen-free aqueous solution of a low molecular weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reduction of the solid obtained in i) by means of hydrogen at from 100 to 350° C., with step ii) being carried out directly after step i).

  在至少一种有机化合物氢化的过程中，有机化合物或化合物被带入含氢气体中，在催化剂的存在下，该催化剂包括作为活性金属的钌单独或与周期表的I，VII或VIII族过渡金属中的至少一种进一步金属一起应用于基于非晶态二氧化硅的支撑材料，并且可以通过以下方式获得：i）用不含卤素的低分子量钌化合物的水溶液对基于非晶态二氧化硅的支撑材料进行单次或多次处理，并在低于200°C的条件下干燥处理所处理的支撑材料，ii）通过在100°C至350°C的温度下用氢还原i）中得到的固体，其中步骤ii）直接在步骤i）之后进行。
• Process for hydrogenation of benzenepolycarboxylic acids and derivatives thereof
  申请人：Soled Stuart L.

  公开号：US10017448B2

  公开（公告）日：2018-07-10

  A process for ring hydrogenation of a benzenepolycarboxylic acid or derivative thereof, includes contacting a feed stream comprising the acid or derivative thereof with a hydrogen containing gas in the presence of a catalyst under hydrogenation conditions to produce a hydrogenated product, wherein the catalyst contains rhodium and ruthenium.

  一种苯聚羧酸或其衍生物的环氢化工艺，包括在氢化条件下，在催化剂存在的情况下，将包含苯聚羧酸或其衍生物的原料流与含氢气体接触，生成氢化产物，其中催化剂包含铑和钌。
• Process for producing aromatic polyimides
  申请人：RHODIA OPERATIONS

  公开号：US10647814B2

  公开（公告）日：2020-05-12

  The invention relates to a process for producing an aromatic polyimide, comprising the following steps: (a) preparing one or more salt(s) by reacting one or more aromatic tetracarboxylic acid(s) in the solid state and one or more diamine(s), optionally in the presence of one or more chain limiter(s), in the presence of one or more binder(s), comprising one or more organic liquid(s), in an amount of from 1% to 25% by weight relative to the total weight of the aromatic tetracarboxylic acid(s), of the diamine(s) and of the optional chain limiter(s), then; (b) polymerising the salt(s) obtained in step (a).

  本发明涉及一种生产芳香族聚酰亚胺的工艺，包括以下步骤：(a) 将一种或多种固态芳香族四羧酸与一种或多种二胺反应，制备一种或多种盐，该反应可选择在一种或多种限链剂存在的情况下进行，反应时存在一种或多种粘合剂，其中包括一种或多种有机液体，其用量为芳香族四羧酸、二胺和任选限链剂总重量的 1%至 25%（按重量计），然后；(b) 聚合步骤(a)中得到的盐。
• Hydrogenation of benzenepolycarboxylic acids or derivatives thereof using a catalyst containing macropores
  申请人：——

  公开号：US20020019559A1

  公开（公告）日：2002-02-14

  A process for hydrogenating benzenepolycarboxylic acids or a derivatives thereof by bringing one or more benzenepolycarboxylic acids or derivatives thereof into contact with a hydrogen-containing gas is carried out in the presence of a catalyst containing macropores. The catalyst contains, as an active metal, at least one metal of transition group VIII of the Periodic Table alone or together with at least one metal of transition group I or VII of the Periodic Table. Except that hydrogenation of dimethyl terephthalate using a catalyst containing ruthenium as active metal, either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table, applied to a support having a mean pore diameter of at least 50 nm and a BET surface are of at most 30 m 2 /g, where the active metal is present in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, and the ratio of the surface areas of the active metal and the catalyst support is less than 0.05, is excluded. Likewise, hydrogenation of dimethyl terephthalate using a catalyst containing ruthenium as active metal, either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table, applied to a support with from 10 to 50% pore volume formed by macropores with pore volumes from 50 nm to 10,000 nm, and 50 to 90% pore volume formed by mesopores with pore diameters from 2 to 50 nm, with the pore volumes adding up to 100%, where the active metal is present in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, is also excluded. Further, novel hydrogenation products, obtainable by hydrogenating benzenepolycarboxylic acid and derivatives, as well as their use as plasticizers in plastics.

  一种通过使一种或多种苯聚羧酸或其衍生物与含氢气体接触而使苯聚羧酸或其衍生物氢化的工艺是在含有大孔的催化剂存在下进行的。催化剂中至少含有一种元素周期表第八过渡族金属作为活性金属，或至少含有一种元素周期表第一或第七过渡族金属。但使用含有钌作为活性金属的催化剂（单独或与至少一种元素周期表中过渡族 I、VII 或 VIII 金属一起）在平均孔径至少为 50 nm 且 BET 表面积至多为 30 m2 的载体上进行对苯二甲酸二甲酯的氢化，则不在此列。 2 /g，其中活性金属的含量为催化剂总重量的 0.01 至 30%（按重量计），且活性金属与催化剂载体的表面积之比小于 0.05。同样，使用含有作为活性金属的钌的催化剂进行对苯二甲酸二甲酯的氢化，该催化剂可单独使用，也可与元素周期表中过渡族 I、VII 或 VIII 中的至少一种金属一起使用，该催化剂应用于孔体积为 50 纳米至 10,000 纳米的大孔所形成的孔体积为 10%至 50%，孔直径为 2 至 50 纳米的中孔所形成的孔体积为 50%至 90%，孔体积相加达 100%的载体上，其中活性金属的含量为 0.也不包括活性金属含量为 0.01 至 30%（按催化剂总重量计）的催化剂。此外，还包括通过氢化苯聚羧酸及其衍生物而获得的新型氢化产品，以及它们在塑料中作为增塑剂的用途。
• Adhesion promoter additive comprising an unsaturated, amorphous polyester
  申请人：DEGUSSA AG

  公开号：US20040054075A1

  公开（公告）日：2004-03-18

  An adhesion promoter additive contains at least one unsaturated, amorphous polyester containing 1) an acid component comprising at least one &agr;,&bgr;-unsaturated dicarboxylic acid, and 2) an alcohol component. The alcohol component contains at least 5% of a dicidol mixture of the isomeric compounds a) 3,8-bis(hydroxymethyl)tricyclo[5.2.1.0 2,6 ]decane, b) 4,8-bis(hydroxy-methyl)-tricyclo[5.2.1.0 2,6 ]decane and c) 5,8-bis-(hydroxymethyl)tricyclo[5.2.1.0 2,6 ]decane. Each isomer is present in the dicidol mixture in a proportion of from 20 to 40% by weight. A sum of the isomeric compounds a)-c) is from 90 to 100% by weight.

  一种附着力促进剂添加剂包含至少一种不饱和无定形聚酯，其中 1) 酸组分包含至少一种&agr;,&bgr;-不饱和二羧酸，2) 醇组分。醇组分含有至少 5%的同分异构体混合物 a) 3,8-双（羟甲基）三环[5.2.1.0； b) 3,8-双（羟甲基）三环[5.2.1.0。 2,6 ]癸烷， b) 4,8-双（羟甲基）三环[5.2.1.0 2,6 ]癸烷和 c) 5,8-双（羟甲基）三环[5.2.1.0 2,6 癸烷。每种异构体在二缩水甘油混合物中的比例为 20%至 40%（按重量计）。按重量计，a)-c)异构体化合物的总和为 90%至 100%。