Methyl-<2,4-dimethyl-phenyl>-carbonat | 31268-80-1

• 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: Methyl-<2,4-dimethyl-phenyl>-carbonat
• 英文别名: 2.4-Xylenyl-methylcarbonat；Carbonic acid, methyl 2,4-xylyl ester；(2,4-dimethylphenyl) methyl carbonate
• CAS: 31268-80-1
• 化学式: C₁₀H₁₂O₃
• 分子量: 180.203
• InChiKey: SJDGWUGNGYVEMT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  1,2-Dimethoxycarbonyl-1-triphenylphosphonio-hydrazid 、 2,4-Dimethylphenylcyanat 生成 Methyl-<2,4-dimethyl-phenyl>-carbonat
  参考文献：
  名称：

  Brunn,E.; Huisgen,R., Angewandte Chemie, 1969, vol. 81, p. 534 - 536

  摘要：

  DOI：

文献信息

• Method for Producing Diaryl Carbonate
  申请人：Nishiyama Budianto

  公开号：US20120316357A1

  公开（公告）日：2012-12-13

  The present invention provides a method for continuously producing a diaryl carbonate stably for a long time with high productivity. The method for producing a diaryl carbonate according to the present invention comprises a step (1) of obtaining an alkylaryl carbonate; a step (2) of obtaining a reaction product from the alkylaryl carbonate; a step (3) of separating the diaryl carbonate and a high boiling component from the reaction product; and a step (4) of recycling the high boiling component into the steps (1) and/or (2), wherein the high boiling component recycled in the step (4) includes a particular compound, and the particular compound satisfies a particular condition.

  本发明提供了一种稳定长时间高产量连续生产二芳基碳酸酯的方法。根据本发明的生产二芳基碳酸酯的方法包括以下步骤：（1）获得烷基芳基碳酸酯；（2）从烷基芳基碳酸酯获得反应产物；（3）从反应产物中分离出二芳基碳酸酯和高沸点组分；（4）将高沸点组分回收到步骤（1）和/或（2）中，其中在步骤（4）中回收的高沸点组分包括特定化合物，且该特定化合物符合特定条件。
• METHOD FOR TREATMENT OF ISOCYANATE RESIDUE, AND METHOD FOR TREATMENT OF CARBONATE
  申请人：Shimokawatoko Yoshiki

  公开号：US20120271067A1

  公开（公告）日：2012-10-25

  A method for treating an isocyanate residue, which comprises carrying out a thermal decomposition reaction of a carbamate that is produced by the reaction among an amine, urea and/or an N-unsubstituted carbamic acid ester and an alcohol to produce a decomposition solution, separating an isocyanate and the alcohol from the decomposition solution to produce the isocyanate residue, and bringing the isocyanate residue into contact with high-pressure/high-temperature water to decompose the isocyanate residue into an amine; and a method for treating a carbonate, which comprises bringing the carbonate into contact with high-pressure/high-temperature water to decompose the carbonate into an alcohol.

  一种处理异氰酸酯残留物的方法，包括进行热分解反应，将胺、尿素和/或一种未取代的N-氨基甲酸酯和醇反应生成的氨基甲酸酯分解为分解液，从分解液中分离出异氰酸酯和醇，产生异氰酸酯残留物，并将异氰酸酯残留物与高压/高温水接触以将异氰酸酯残留物分解为胺；以及一种处理碳酸盐的方法，包括将碳酸盐与高压/高温水接触以将碳酸盐分解为醇。
• Method for producing an aromatic carbonate
  申请人：Miyake Nobuhisa

  公开号：US20070055042A1

  公开（公告）日：2007-03-08

  A method for producing an aromatic carbonate, comprising: (1) performing a reaction between an organometal compound and carbon dioxide to obtain a reaction mixture containing a dialkyl carbonate formed by the reaction, (2) separating the dialkyl carbonate from the reaction mixture to obtain a residual liquid, (3) reacting the residual liquid with an alcohol to form at least one organometal compound and form water and removing the water from the organometal compound, and (4) reacting the dialkyl carbonate separated in step (2) with an aromatic hydroxy compound to obtain an aromatic carbonate.

  一种生产芳香族碳酸酯的方法，包括：（1）在有机金属化合物和二氧化碳之间进行反应，以获得反应混合物，其中包含通过反应形成的二烷基碳酸酯，（2）从反应混合物中分离出二烷基碳酸酯以获得残留液，（3）将残留液与醇反应，形成至少一种有机金属化合物并形成水，并从有机金属化合物中除去水，（4）将在步骤（2）中分离的二烷基碳酸酯与芳香族羟基化合物反应，以获得芳香族碳酸酯。
• Method for preparing aromatic carbonate
  申请人：MITSUBISHI GAS CHEMICAL COMPANY, INC.

  公开号：EP0760359A1

  公开（公告）日：1997-03-05

  A process for producing an aromatic carbonate which comprises: reacting a dialkyl carbonate represented by general formula (1) with an aromatic carboxylic acid aryl ester represented by general formula (2) in the presence of a catalyst to produce an aromatic carbonate represented by one or both of general formulae (3) and (4):         R-OCOO-R     (1)         Ar'-COO-Ar     (2)         Ar-OCOO-R     (3)         Ar-OCOO-Ar     (4) wherein R represents an alkyl group having from 1 to 4 carbon atoms, and Ar and Ar' each represents an unsubstituted phenyl group or a phenyl group substituted by a substituent selected from the group consisting of alkyl, alkoxy, aryl, aryloxy and a halogen atom.

  一种生产芳香族碳酸盐的工艺，包括：通式（1）代表的碳酸二烷基酯与通式（2）代表的芳香族羧酸芳基酯在催化剂存在下反应，生成通式（3）和（4）中的一个或两个所代表的芳香族碳酸盐： R-OCOO-R (1) Ar'-COO-Ar (2) Ar-OCOO-R (3) Ar-OCOO-Ar (4) 其中 R 代表具有 1 至 4 个碳原子的烷基，Ar 和 Ar'分别代表未取代的苯基或被选自烷基、烷氧基、芳基、芳氧基和卤素原子的取代基取代的苯基。
• PROCESS FOR THE PREPARATION OF AROMATIC CARBONATE
  申请人：Asahi Kasei Kogyo Kabushiki Kaisha

  公开号：EP0855384A1

  公开（公告）日：1998-07-29

  Disclosed is a process for producing an aromatic carbonate which comprises transesterifying, in the presence of a metal-containing catalyst, a starting material selected from the group consisting of a dialkyl carbonate, an alkyl aryl carbonate and a mixture thereof with a reactant selected from the group consisting of an aromatic monohydroxy compound, an alkyl aryl carbonate and a mixture thereof, wherein the transesterification is conducted while maintaining a weight ratio (WR) of at least one aromatic group-containing substance selected from the group consisting of a specific aromatic polyhydroxy compound and a residue thereof to the metal of the metal-containing catalyst at 2.0 or less, wherein the weight ratio (WR) is measured with respect to a catalyst-containing liquid-phase mixture in a system for the transesterification, and wherein the aromatic group-containing substance originates from the starting material, the reactant and/or a by-product of the transesterification. According to the process of the present invention, the transesterification reaction can be conducted without suffering disadvantageous phenomena, such as the deposition of the catalyst from the catalyst-containing liquid-phase mixture and the adhesion of the deposited catalyst to the inner walls of the reactor, pipes and the like, so that the desired aromatic carbonate can be produced stably for a prolonged period of time.

  本发明公开了一种生产芳香族碳酸酯的工艺，该工艺包括在含金属催化剂存在下，将选自由碳酸二烷基酯、碳酸烷基芳基酯及其混合物组成的组的起始原料与选自由芳香族单羟基化合物组成的组的反应物进行酯交换反应、碳酸烷基芳基酯及其混合物，其中酯交换反应是在至少一种选自由特定芳香族多羟基化合物及其残余物组成的组中的含芳香族基团物质与含金属催化剂的金属的重量比(WR)保持在2.0或更低，其中重量比(WR)是相对于用于酯交换反应的系统中含催化剂的液相混合物而测量的，并且其中含芳香族基团物质来源于起始原料、反应物和/或酯交换反应的副产物。根据本发明的工艺，在进行酯交换反应时，不会出现催化剂从含催化剂的液相混合物中沉积以及沉积的催化剂附着在反应器内壁、管道等处等不利现象，从而可以长期稳定地生产出所需的芳香族碳酸盐。