Bis(2-methylphenyl) (methanediyldibenzene-4,1-diyl)biscarbamate

• 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: Bis(2-methylphenyl) (methanediyldibenzene-4,1-diyl)biscarbamate
• 英文别名: (2-methylphenyl) N-[4-[[4-[(2-methylphenoxy)carbonylamino]phenyl]methyl]phenyl]carbamate
• 化学式: C₂₉H₂₆N₂O₄
• 分子量: 466.5
• InChiKey: IDPXFUMKOKFTOX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.8
• 重原子数：
  35
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  76.7
• 氢给体数：
  2
• 氢受体数：
  4

文献信息

• ISOCYANATE PRODUCTION PROCESS
  申请人：Shinohata Masaaki

  公开号：US20110092731A1

  公开（公告）日：2011-04-21

  An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without using phosgene. The present invention discloses a process for producing an isocyanate by subjecting a carbamic acid ester to a thermal decomposition reaction, including the steps of: recovering a low boiling point component in a form of a gaseous phase component from a thermal decomposition reaction vessel in which the thermal decomposition reaction is carried out; recovering a liquid phase component containing a carbamic acid ester from a bottom of the thermal decomposition reaction vessel; and supplying all or a portion of the liquid phase component to an upper portion of the thermal decomposition reaction vessel.

  本发明的一个目的是提供一种能够在长时间内稳定地高产且不使用光气的情况下生产异氰酸酯的方法，而不会遇到先前生产异氰酸酯时的问题。本发明公开了一种通过将氨基甲酸酯经受热分解反应来生产异氰酸酯的方法，包括以下步骤：从进行热分解反应的反应釜中回收形成气相组分的低沸点组分；从热分解反应釜底部回收含有氨基甲酸酯的液相组分；并将全部或部分液相组分供给至热分解反应釜的上部。
• PROCESS FOR PRODUCING ISOCYANATES USING DIARYL CARBONATE
  申请人：Shinohata Masaaki

  公开号：US20110054211A1

  公开（公告）日：2011-03-03

  An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without using phosgene. The present invention provides an isocyanate production process including the steps of: obtaining a reaction mixture containing an aryl carbamate having an aryl group originating in a diaryl carbonate, an aromatic hydroxy compound originating in a diaryl carbonate, and a diaryl carbonate, by reacting a diaryl carbonate and an amine compound in the presence of a reaction solvent in the form of an aromatic hydroxy compound; transferring the reaction mixture to a thermal decomposition reaction vessel; and obtaining isocyanate by applying the aryl carbamate to a thermal decomposition reaction, wherein the reaction vessel in which the reaction between the diaryl carbonate and the amine compound is carried out and the thermal decomposition reaction vessel for the aryl carbamate are different.

  本发明的一个目的是提供一种能够在生产异氰酸酯时在长时间内稳定地且高产率地生产异氰酸酯的方法，而不使用光气时遇到先前技术问题的方法。本发明提供了一种异氰酸酯生产方法，包括以下步骤：通过在反应溶剂形式的芳香羟基化合物存在下，通过反应二芳基碳酸酯和胺化合物得到含有源自二芳基碳酸酯的芳基碳酸酯、源自二芳基碳酸酯的芳香羟基化合物和二芳基碳酸酯的反应混合物；将反应混合物转移至热分解反应容器；通过将芳基碳酸酯应用于热分解反应来获得异氰酸酯，其中进行二芳基碳酸酯和胺化合物之间的反应的反应容器和用于芳基碳酸酯的热分解反应的反应容器是不同的。
• SEPARATION METHOD AND METHOD FOR PRODUCING ISOCYANATE
  申请人：Asahi Kasei Chemicals Corporation

  公开号：EP2626345A1

  公开（公告）日：2013-08-14

  An object of the present invention is to provide the separation of a mixture containing plural types of reversibly reacting compounds, especially, a method for efficiently separating an isocyanate from a mixture containing the isocyanate and a hydroxy compound, particularly, a method for efficiently separating an isocyanate and a hydroxy compound that form by the thermal decomposition of an N-substituted carbamic acid ester. The object is attained by a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen-containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).

  本发明的目的是提供一种分离含有多种可逆反应化合物的混合物的方法，特别是一种从含有异氰酸酯和羟基化合物的混合物中有效分离异氰酸酯的方法，尤其是一种有效分离由N-取代氨基甲酸酯热分解形成的异氰酸酯和羟基化合物的方法。为实现上述目标，可采用一种方法，用多级蒸馏塔分离含有活性含氢化合物（A）和与活性含氢化合物（A）发生可逆反应的化合物（B）的混合物、该方法包括在中间沸点非活性化合物（C）存在的情况下，用多级蒸馏塔蒸馏分离活性含氢化合物（A）和化合物（B），中间沸点非活性化合物（C）的正常沸点介于活性含氢化合物（A）的正常沸点和化合物（B）的正常沸点之间，并且对活性含氢化合物（A）和化合物（B）均无化学活性。
• Separation method and method for producing isocyanate
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：US11192853B2

  公开（公告）日：2021-12-07

  Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).

  本发明公开了一种用多级蒸馏塔分离含有活性含氢化合物（A）和与活性含氢化合物（A）发生可逆反应的化合物（B）的混合物的方法、该方法包括在中间沸点非活性化合物（C）存在的情况下，用多级蒸馏塔蒸馏分离活性含氢化合物（A）和化合物（B），中间沸点非活性化合物（C）的正常沸点介于活性含氢化合物（A）的正常沸点和化合物（B）的正常沸点之间，且对活性含氢化合物（A）和化合物（B）均无化学活性。
• SEPARATION METHOD
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：EP2641896B1

  公开（公告）日：2020-10-14