dimethyl (1,4-phenylenebis(methylene))dicarbamate | 27959-91-7

• 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: dimethyl (1,4-phenylenebis(methylene))dicarbamate
• 英文别名: Dimethyl-p-xylyl-dicarbamat；N,N'-p-xylylene-bis-carbamic acid dimethyl ester；N,N'-p-Xylylen-bis-carbamidsaeure-dimethylester；N.N'-p-Xylylen-dicarbamidsaeure-dimethylester；α.α'-Bis-methoxycarbonylamino-p-xylol；1,4-phenylenedimethylene-carbamic acid dimethyl ester；Methyl 4-{[(methoxycarbonyl)amino]methyl}benzylcarbamate；methyl N-[[4-[(methoxycarbonylamino)methyl]phenyl]methyl]carbamate
• CAS: 27959-91-7
• 化学式: C₁₂H₁₆N₂O₄
• mdl: MFCD03399963
• 分子量: 252.27
• InChiKey: FMFPRSAHOQBOCK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  76.7
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1,4-二(异氰酸甲基)苯 生成 dimethyl (1,4-phenylenebis(methylene))dicarbamate
  参考文献：
  名称：

  Siefken, Justus Liebigs Annalen der Chemie, 1949, vol. 562, p. 75,1114

  摘要：

  DOI：

文献信息

• Urethanes synthesis from oxamic acids under electrochemical conditions
  作者：Ikechukwu Martin Ogbu、Jonathan Lusseau、Gülbin Kurtay、Frédéric Robert、Yannick Landais

  DOI：10.1039/d0cc05069e

  日期：——

  Urethane synthesis via oxidative decarboxylation of oxamic acids under mild electrochemical conditions is reported. This simple phosgene-free route to urethanes involves an in situ generation of isocyanates by anodic oxidation of oxamic acids in an alcoholic medium. The reaction is applicable to a wide range of oxamic acids, including chiral ones, and alcohols furnishing the desired urethanes in a

  报道了在温和的电化学条件下通过草酸的氧化脱羧合成氨基甲酸酯。这种简单的无光气的氨基甲酸酯途径涉及在酒精介质中通过草酸的阳极氧化原位生成异氰酸酯。该反应适用于广泛的草酰胺酸，包括手性酸，以及在不使用化学氧化剂的情况下，通过一锅法即可提供所需氨基甲酸酯的醇。
• 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。
• PROCESS FOR PRODUCING POLYURETHANE
  申请人：DAICEL CHEMICAL INDUSTRIES, LTD.

  公开号：EP0477376A1

  公开（公告）日：1992-04-01

  A process for producing polyurethane useful as coating material, which comprises preparing dialkyl carbonate substantially without using phosgene, reacting the carbonate with a diamine to give a urethane, thermally decomposing it into a diisocyanate, and converting it into a polyurethane in the presence of a Lewis acid and/or a protonic acid. The reaction of a diisocyanate compound containing a reduced amount of chlorine is promoted by a Lewis acid and/or a protonic acid.

  一种生产用作涂层材料的聚氨酯的工艺，包括基本不使用光气制备碳酸二烷基酯，使碳酸酯与二胺反应生成聚氨酯，热分解成二异氰酸酯，并在路易斯酸和/或质子酸存在下转化成聚氨酯。路易斯酸和/或质子酸可促进含氯量降低的二异氰酸酯化合物的反应。
• DEGNER, DIETER;HANNEBAUM, HEINZ
  作者：DEGNER, DIETER、HANNEBAUM, HEINZ

  DOI：——

  日期：——
• US5138015A
  申请人：——

  公开号：US5138015A

  公开（公告）日：1992-08-11