dipropyl (4-methyl-1,3-phenylene)dicarbamate | 60483-66-1

• 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: dipropyl (4-methyl-1,3-phenylene)dicarbamate
• 英文别名: dipropyl 2,4-toluenedicarbamate；N,N'-(4-methyl-m-phenylene)-bis-carbamic acid dipropyl ester；N,N'-(4-Methyl-m-phenylen)-bis-carbamidsaeure-dipropylester；dipropyl toluene-2,4-dicarbamate；N,N'-(4-Methyl-1,3-phenylene)bis(propyl carbamate)；propyl N-[2-methyl-5-(propoxycarbonylamino)phenyl]carbamate
• CAS: 60483-66-1
• 化学式: C₁₅H₂₂N₂O₄
• 分子量: 294.351
• InChiKey: AZOPMOSYNSRIOO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  76.7
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 海关编码：
  2924299090

反应信息

• 作为反应物：
  描述：

  dipropyl (4-methyl-1,3-phenylene)dicarbamate 在 三氯化硼 、 三乙胺 作用下， 以 苯 为溶剂， 反应 0.5h， 以94%的产率得到甲苯-2,4-二异氰酸酯
  参考文献：
  名称：

  Synthesis of isocyanates from carbamate esters employing boron trichloride

  摘要：

  在有 Et3N 存在的情况下，使用 BCl3 可以将氨基甲酸酯转化为具有工业重要性的异氰酸酯和二异氰酸酯；该反应的实施和操作简单，在温和的条件下进行，并能以极高的产率获得异氰酸酯。

  DOI：

  10.1039/a807287f
• 作为产物：
  描述：

  钝叶扁柏氨基甲酸酯 A; 4-甲基苯-1,3-二氨基甲酸二甲酯 在 montmorillonite K₁₀ Clay 作用下， 以 N-甲基吡咯烷酮 为溶剂， 反应 0.5h， 生成 dipropyl (4-methyl-1,3-phenylene)dicarbamate
  参考文献：
  名称：

  钝氨基甲酸酯A衍生物的合成及镇咳作用

  摘要：

  摘要 Obtucarbamate A 是从广州市 Disporum cantoniense 中纯化得到的，具有良好的镇咳作用。在目前的工作中，以obtucarbamate A为原料，通过微波法设计合成了一系列obtucarbamate A衍生物，并对其镇咳活性进行了评价。结果表明，采用简单的方法，以1-甲基-2-吡咯烷酮为溶剂，温度为190 ℃，微波60 W功率照射30 min，得到甲苯二异氰酸酯，产率95.1%。所有化合物均具有良好的镇咳活性，酯链和氨基的空间位阻小不饱和基团有利于活性。首次报道了钝氨基甲酸酯衍生物用作镇咳药，该结果为钝氨基甲酸酯衍生物作为新型镇咳药的应用提供了依据。图形概要

  DOI：

  10.1080/00397911.2020.1762093

文献信息

• Method for Producing Carbonyl Compund
  申请人：Shinohata Masaaki

  公开号：US20130178645A1

  公开（公告）日：2013-07-11

  A method for producing a carbonyl compound of the present invention comprises a step (X) of reacting a specific compound having a urea bond with a carbonic acid derivative having a carbonyl group (—C(═O)—) under heating at a temperature equal to or higher than the thermal dissociation temperature of the urea bond to obtain the carbonyl compound.

  本发明的生产羰基化合物的方法包括以下步骤（X）：将具有脲键的特定化合物与具有羰基（—C(═O)—）的碳酸衍生物在温度高于或等于脲键热解温度的条件下加热反应，以获得所述羰基化合物。
• METHOD FOR PRODUCING URETHANES COMPOSED OF DI-FUNCTIONAL AROMATIC AMINES AND DIALKYL CARBONATES
  申请人：Franzke Axel

  公开号：US20110137067A1

  公开（公告）日：2011-06-09

  A process for preparing urethanes by reacting aromatic diamines with a dialkyl carbonate, wherein the alkyl radical of the organic dialkyl carbonate comprises 2-18 carbon atoms and one or more heteroatoms and the reaction is performed in the presence of a catalyst.

  一种通过将芳香族二胺与二烷基碳酸酯反应制备脲的方法，其中有机二烷基碳酸酯的烷基基团包含2-18个碳原子和一个或多个杂原子，并在催化剂存在下进行反应。
• PROCESS FOR PRODUCING ISOCYANATES
  申请人：Shinohata Masaaki

  公开号：US20100029981A1

  公开（公告）日：2010-02-04

  An object of the present invention is to provide a process that enables isocyanates to be stably produced over a long period of time at high yield without encountering various problems as found in the prior art when producing isocyanates without using phosgene. The present invention discloses a process for producing an isocyanate, comprising the steps of: reacting a carbamic acid ester and an aromatic hydroxy compound to obtain an aryl carbamate having a group derived from the aromatic hydroxy compound; and subjecting the aryl carbamate to a decomposition reaction, wherein the aromatic hydroxy compound is an aromatic hydroxy compound which is represented by the following formula (1) and which has a substituent R 1 at least one ortho position of a hydroxyl group: (wherein ring A represents an aromatic hydrocarbon ring in a form of a single or multiple rings which may have a substitute and which have 6 to 20 carbon atoms; R 1 represents a group other than a hydrogen atom in a form of an aliphatic alkyl group having 1 to 20 carbon atoms, an aliphatic alkoxy group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or an aralkyloxy group having 7 to 20 carbon atoms, the group containing an atom selected from a carbon atom, an oxygen atom and a nitrogen atom; and R 1 may bond with A to form a ring structure).

  本发明的目的是提供一种过程，使得在不使用光气的情况下，能够稳定地高产长时间生产异氰酸酯，而不会遇到生产异氰酸酯时在先前技术中发现的各种问题。本发明公开了一种生产异氰酸酯的方法，包括以下步骤：反应一个氨基甲酸酯和一个芳香羟基化合物以获得含有源自芳香羟基化合物的基团的芳基氨基甲酸酯；并将芳基氨基甲酸酯进行分解反应，其中芳香羟基化合物是由以下式（1）表示并且在羟基位置的至少一个邻位上具有取代基R1的芳香羟基化合物：（其中，环A表示一个具有单个或多个环，并且可能具有取代基的芳香烃环，其具有6至20个碳原子；R1表示除氢原子外的基团，以具有1至20个碳原子的脂肪基烷基团，具有1至20个碳原子的脂肪基烷氧基团，具有6至20个碳原子的芳基团，具有6至20个碳原子的芳氧基团，具有7至20个碳原子的芳基烷基团或具有7至20个碳原子的芳基烷氧基团，该基团含有从碳原子、氧原子和氮原子中选择的原子；并且R1可以与A结合形成一个环状结构）。
• ISOCYANATE PRODUCTION PROCESS USING COMPOSITION CONTAINING CARBAMIC ACID ESTER AND AROMATIC HYDROXY COMPOUND, AND COMPOSITION FOR TRANSFER AND STORAGE OF CARBAMIC ACID ESTER
  申请人：Shinohata Masaaki

  公开号：US20100113823A1

  公开（公告）日：2010-05-06

  An object of the present invention is to provide an isocyanate production process, which is free of the various problems found in the prior art, and which uses a composition containing a carbamic acid ester and an aromatic hydroxy compound when producing isocyanate without using phosgene, as well as a carbamic acid ester composition for transferring or storing carbamic acid ester. The present invention discloses an isocyanate production process including specific steps and using a composition containing a carbamic acid ester and an aromatic hydroxy compound, as well as a composition for transfer or storage of carbamic acid ester comprising the carbamic acid ester and the specific aromatic hydroxy compound.

  本发明的目的是提供一种异氰酸酯生产工艺，该工艺不使用光气，使用含有碳酸酯和芳香羟基化合物的组合物生产异氰酸酯，避免了先前技术中发现的各种问题，以及用于转移或储存碳酸酯的碳酸酯组合物。本发明揭示了一种异氰酸酯生产工艺，包括特定步骤和使用含有碳酸酯和芳香羟基化合物的组合物，以及用于转移或储存碳酸酯的组合物，包括碳酸酯和特定的芳香羟基化合物。
• N-Substituted Carbamic Acid Ester Production Method, Isocyanate Production Method Using Such N-Substituted Carbamic Acid Ester, And Composition For Transfer And Storage Of N-Substituted Carbamic Acid Ester Comprising N-Substituted Carbamic Acid Ester and Aromatic Hydroxy Compound
  申请人：Shinohata Masaaki

  公开号：US20110133121A1

  公开（公告）日：2011-06-09

  The present invention is a method for producing an N-substituted carbamic acid ester derived from an organic amine from an organic amine, a carbonic acid derivative and a hydroxy composition containing one or more types of hydroxy compounds, wherein the organic amine, the carbonic acid derivative and the hydroxy composition are reacted using a urethane production reaction vessel provided with a condenser, a gas containing the hydroxy composition, the compound having the carbonyl group derived from the carbonic acid derivative, and an ammonia formed as a by-product in the reaction, is introduced into the condenser provided in the urethane production reaction vessel, and the hydroxy composition and the compound having the carbonyl group derived from the carbonic acid derivative are condensed, and wherein a stoichiometric ratio of a hydroxy compound contained in the condensed hydroxy composition to the condensed compound having the carbonyl group derived from the carbonic acid derivative is 1 or more, and a ratio of number of carbonyl groups (—C(═O)—) contained in the compound having the carbonyl group derived from the carbonic acid derivative and number of ammonia molecules contained in the ammonia recovered as a gas from the condenser is 1 or less.

  本发明涉及一种从有机胺、碳酸衍生物和含有一种或多种羟基化合物中制得的N-取代氨基甲酸酯的制备方法，其中使用一种含有冷凝器的脲类生产反应容器反应有机胺、碳酸衍生物和羟基化合物，将含有羟基化合物的气体、来自碳酸衍生物衍生的含有羰基基团的化合物、以及在反应中形成的氨气体引入到脲类生产反应容器中的冷凝器中，使羟基化合物和含有羰基基团的化合物冷凝，其中在冷凝的羟基化合物中所含有的羟基化合物与冷凝的含有羰基基团的化合物中所含有的羰基基团的化合物的比例为1或更多，而且在从冷凝器中回收的氨气体中所含有的羰基基团（—C(═O)—）数与氨分子数的比例为1或更少。