N,N'-dicarboxy-2,4-toluenediamine

• 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: N,N'-dicarboxy-2,4-toluenediamine
• 英文别名: [3-(Carboxyamino)-4-methylphenyl]carbamic acid
• 化学式: C₉H₁₀N₂O₄
• 分子量: 210.189
• InChiKey: PPQCOLWFUAINDS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  98.7
• 氢给体数：
  4
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N,N'-dicarboxy-2,4-toluenediamine 在 氯化亚砜 作用下， 生成 toluene-2,4-bis-carbamic acid chloride
  参考文献：
  名称：

  Cl35 nuclear quadrupole resonance spectra of some carboxylic acid chlorides

  摘要：

  DOI：

  10.1007/bf00863204
• 作为产物：
  描述：

  甲酸甲酯 、 2,4-二氨基甲苯 、 alkaline earth salt of/the/ methylsulfuric acid 在 sodium methylate 、 sodium iodide 作用下， 以 甲醇 为溶剂， 反应 4.0h， 以81%的产率得到N,N'-dicarboxy-2,4-toluenediamine
  参考文献：
  名称：

  [EN] OXIDATIVE CARBONYLATION OF AMINO ARYL COMPOUNDS BY ALKYL FORMATES
  [FR] CARBONYLATION OXYDATIVE DE COMPOSÉS AMINOARYLE PAR DES FORMIATES D'ALKYLE

  摘要：

  本发明涉及一种在金属基催化剂存在下，从烷基甲酸酯和至少一种氨基芳族化合物制备烷基芳基碳酸酯的过程。所述烷基芳基碳酸酯可用于制备异氰酸酯。

  公开号：

  WO2015158799A1

文献信息

• Method for producing organic compounds by substituting halogen atoms
  申请人：MITSUI CHEMICALS, INC.

  公开号：EP1486479A1

  公开（公告）日：2004-12-15

  The invention pertains to a method in which a halogen atom of an organic compound is replaced with a group derived from a nucleophilic agent, at high yield and high efficiency, by the following method which includes a step of reacting the nucleophilic agent with an organic material having a halogen atom bonded to a carbon atom having four σ bonds, more specifically: a method for producing an organic compound having Q, the method including a step of reacting a compound represented by general formula (2) with an organic starting material having at least one halogen atom bonded to a carbon atom having four σ bonds so as to replace the halogen atom in the organic starting material with Q:         MQa     (2) (wherein M represents an alkali metal atom, an alkali earth metal atom, or a rare earth metal atom; Q represents a moiety of an inorganic acid or an active hydrogen compound derived by eliminating a proton, wherein Q is a halogen atom different from the halogen atom in the organic starting material having the halogen atom bonded to the carbon atom having the four σ bonds; and a represents an integer of 1 to 3) in the presence of a compound represented by general formula (1) (wherein Z- represents an anion derived by eliminating a proton from an inorganic acid or an active hydrogen compound; R2 is the same or different; R2 each independently represent a C1-C10 hydrocarbon group or two R2 on the same nitrogen atom may be bonded with each other to form a ring with the nitrogen atom).

  这项发明涉及一种方法，其中有机化合物中的卤素原子被来自亲核试剂的基团取代，且产率高效率高，通过以下方法实现，包括以下步骤：将亲核试剂与具有与碳原子形成四个σ键的卤素原子相结合的有机材料反应的步骤，更具体地说：一种用于生产具有Q的有机化合物的方法，包括以下步骤：将由通式（2）表示的化合物与至少一个卤素原子与碳原子形成四个σ键的有机起始材料反应，以将有机起始材料中的卤素原子替换为Q：         MQa     (2) （其中M代表碱金属原子、碱土金属原子或稀土金属原子；Q代表由消除质子衍生的无机酸或活性氢化合物的基团，其中Q是不同于有机起始材料中卤素原子的卤素原子，该卤素原子与具有四个σ键的碳原子相结合；a表示1到3的整数），在通式（1）表示的化合物的存在下 （其中Z-代表由无机酸或活性氢化合物中消除质子衍生的阴离子；R2相同或不同；R2各自独立地表示C1-C10烃基，或者两个R2在同一氮原子上可能与彼此结合形成与氮原子的环）。
• [EN] SILICA-BASED ZINC CATALYSTS. THEIR PREPARATION AND USE IN THE ALKOXYCARBONYLATION OF AMINES<br/>[FR] CATALYSEURS AU ZINC À BASE DE SILICE, LEUR PRÉPARATION ET LEUR UTILISATION DANS L'ALCOXYCARBONYLATION D'AMINES
  申请人：COVESTRO DEUTSCHLAND AG

  公开号：WO2018210711A1

  公开（公告）日：2018-11-22

  The present invention relates to silica-based heterogeneous zinc compounds which are suitable as catalysts in the reaction of amines with dialkyl carbonates to produce carbamates. The catalysts have the formula [SiO2]-CH2-CHR-X-COOZn[Y], wherein [SiO2] represents a silica carrier selected from the group consisting of ordered mesoporous silica and irregular amorphous narrow pore silica, R represents a moiety selected from the group consisting of hydrogen, -CH3, and -CH2CH3, preferably hydrogen, X is an aliphatic chain of 2 to 11 carbon atoms that optionally comprises ether moieties and [Y] represents a mono anion. The invention is also directed towards a method for the preparation of the aforementioned compounds and towards method for the alkoxycarbonylation of amines.

  本发明涉及硅基杂化锌化合物，适用于作为催化剂在胺与二烷基碳酸酯反应中产生氨基甲酸酯。催化剂的化学式为[SiO2]-CH2-CHR-X-COOZn[Y]，其中[SiO2]代表从有序介孔硅和不规则非晶窄孔硅组成的硅载体，R代表从氢、-CH3和-CH2CH3组成的基团，优选为氢，X是由2至11个碳原子组成的脂肪链，可选地包含醚基团，[Y]代表单阴离子。该发明还涉及上述化合物的制备方法以及胺的烷氧羰基化方法。
• METHOD FOR PRODUCING CARBAMATE AND METHOD FOR PRODUCING ISOCYANATE
  申请人：ASAHI KASEI KABUSHIKI KAISHA

  公开号：US20210179548A1

  公开（公告）日：2021-06-17

  The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and (2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

  本发明提供了一种生产碳酸酯的方法，包括以下步骤：(1)通过使用每个分子至少含有一个一次氨基团的有机初级胺和碳酸气体或碳酸衍生物中选择的至少一种化合物，在低于尿素键热解温度的温度下，生产具有尿素键的化合物(A)；以及(2)将化合物(A)与碳酸酯反应以生产碳酸酯。
• METHOD FOR PRODUCING TOLUENEDICARBAMATE, METHOD FOR PRODUCING TOLUENEDIISOCYANATE, AND TOLUENEDICARBAMATE
  申请人：Murayama Koichi

  公开号：US20130109881A1

  公开（公告）日：2013-05-02

  A method for producing toluenedicarbamate includes a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea, and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group:

  一种生产甲苯二甲酰脲的方法包括以下步骤：通过对甲苯二胺、尿素和/或N-未取代的氨基甲酸酯以及醇进行反应的脲酸酯生产过程来生产甲苯二甲酰脲；以及通过还原二取代苯甲酰脲及其衍生物至相对于100摩尔的甲苯二甲酰脲不超过10摩尔的苯甲酰脲还原过程，其中二取代苯甲酰脲由下式（1）表示，并具有一个甲基基团和一个氨基基团：
• METHOD FOR PRODUCING ISOCYANATES
  申请人：Covestro Deutschland AG

  公开号：US20200361856A1

  公开（公告）日：2020-11-19

  The invention relates to a method for producing an isocyanate, wherein a carbamate or thiolcarbomate is converted, in the presence of a catalyst, with separation of an alcohol or thioalcohol, at a temperature of at least 150° C., to the corresponding isocyanate, wherein a compound of the general formula (X)(Y)(Z—H) is used as a catalyst, in particular characterized in that the compound has both a proton donor function and a proton acceptor function. In the catalysts according to the invention, a separable proton is bound to a heteroatom, which is more electronegative than carbon. Said heteroatom is either identical to Z or a component thereof. In the catalysts according to the invention, there is additionally a proton acceptor function which is either identical to X or a component thereof. According to the invention, the proton donator and proton acceptor function are connected to each other by the bridge Y.

  本发明涉及一种制备异氰酸酯的方法，其中在催化剂的存在下，将氨基甲酸酯或硫醇氨基甲酸酯转化为相应的异氰酸酯，同时分离出醇或硫醇，反应温度至少为150°C。所使用的催化剂为一般式（X）（Y）（Z-H）的化合物，特别是其具有质子给体和质子受体功能。在本发明的催化剂中，可分离的质子结合在比碳更电负的杂原子上，该杂原子要么与Z相同，要么是其组分之一。在本发明的催化剂中，还具有质子受体功能，该功能要么与X相同，要么是其组分之一。根据本发明，质子给体和质子受体功能通过桥连Y相互连接。