1,4-二(异氰酸甲基)苯 | 1014-98-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1,4-二(异氰酸甲基)苯
• 英文名称: p-xylylenediisocyanate
• 英文别名: 1,4-bis(isocyanatomethyl)benzene；α,α'-diisocyanato-p-xylene；p-xylylene diisocyanate；1,4-Bis-isocyanatomethyl-benzol；p-Xylylendiisocyanat；α.α'-Diisocyanato-p-xylol
• CAS: 1014-98-8
• 化学式: C₁₀H₈N₂O₂
• 分子量: 188.186
• InChiKey: OHLKMGYGBHFODF-UHFFFAOYSA-N

物化性质

• 熔点：
  45-46 °C
• 沸点：
  320.64°C (rough estimate)
• 密度：
  1.3025 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  58.9
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2929109000

反应信息

• 作为反应物：
  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：
• 作为产物：
  描述：

  生成 1,4-二(异氰酸甲基)苯
  参考文献：
  名称：

  Pyrolysis of N-t-Butyl-N-alkylcarbamoyl Chlorides. A New Synthesis of Isocyanates

  摘要：

  DOI：

  10.1021/jo01043a030

文献信息

• Diamine Compound Having Phosphorylcholine Group, Polymer Thereof, and Process for Producing the Polymer
  申请人：Nagase Yu

  公开号：US20100036081A1

  公开（公告）日：2010-02-11

  Highly polymerizable diamine compounds having a phosphorylcholine group are disclosed. High-molecular weight polymers are obtained from the highly polymerizable diamine compound having a phosphorylcholine group as a monomer, and the polymers have improved mechanical strength, water resistance and heat resistance while maintaining excellent biocompatibility and processability of MPC polymers. Processes for producing the polymers are disclosed. The diamine compounds having a phosphorylcholine group are represented by Formula (I). The polymers contain at least 1 mol % of a specific structural unit with a phosphorylcholine group represented by Formula (II) and have a number average molecular weight of not less than 5,000. In the processes, the diamine compound is used as a monomer.

  具有磷酰胆碱基团的高聚合性二胺化合物被披露。从具有磷酰胆碱基团的高聚合性二胺化合物作为单体得到高分子量聚合物，这些聚合物具有改善的机械强度、耐水性和耐热性，同时保持MPC聚合物的优异生物相容性和加工性。披露了生产这些聚合物的方法。具有磷酰胆碱基团的二胺化合物由式(I)表示。这些聚合物含有至少1摩尔％的由式(II)表示的具有磷酰胆碱基团的特定结构单元，并且具有不低于5,000的数均分子量。在这些方法中，二胺化合物被用作单体。
• [EN] PROCESS FOR THE PREPARATION OF ISOCYANATES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ISOCYANATES
  申请人：COVESTRO DEUTSCHLAND AG

  公开号：WO2019145380A1

  公开（公告）日：2019-08-01

  The invention relates to a process for the preparation of aliphatic, cycloaliphatic or araliphatic isocyanates by reacting at least one primary organic amine with a stoichiometric excess of phosgene in the gas phase, comprising the steps a) reaction of the primary organic amine with an excess of phosgene in the gas phase and quenching the process product with a liquid comprising an inert aromatic solvent to obtain a liquid stream containing the isocyanate and a gas stream containing HCl and phosgene, b) separation of the gas stream containing HCl and phosgene obtained in step a) into a gas stream containing HCl and a liquid stream containing phosgene, c) partial vaporization of the liquid stream containing phosgene obtained in step b) to produce a gas stream containing phosgene, d) the gas stream containing phosgene obtained in step c) is at least partially recycled into the reaction in step a), and wherein the gas stream containing phosgene obtained in step c) contains 0.5 wt% or less of the sum of benzene, chlorobenzene and dichlorobenzene. The invention additionally relates to an isocyanate composition.

  本发明涉及一种通过气相中至少一种一级有机胺与计量过量的光气反应来制备脂肪族、环脂肪族或芳脂肪族异氰酸酯的过程，包括以下步骤：a) 一级有机胺与过量的光气在气相中反应，并且用含有惰性芳香溶剂的液体淬灭过程产物，以获得含有异氰酸酯的液体流和含有氯化氢和光气的气体流；b) 将步骤a)中获得的含有氯化氢和光气的气体流分离成含有氯化氢的气体流和含有光气的液体流；c) 部分汽化步骤b)中获得的含有光气的液体流，以产生含有光气的气体流；d) 将步骤c)中获得的光气气体流至少部分地循环回到步骤a)中的反应中；并且其中，步骤c)中获得的光气气体流含有0.5重量%或以下的苯、氯苯和二氯苯的总和。本发明还涉及一种异氰酸酯组合物。
• [EN] 2-OXO-1,3-DIOXOLANE-4-CARBOXAMIDES, THEIR PREPARATION AND USE<br/>[FR] 2-OXO-1,3-DIOXOLANE-4-CARBOXAMIDES, LEUR PRÉPARATION ET LEUR UTILISATION
  申请人：CONSTR RES & TECH GMBH

  公开号：WO2013092011A1

  公开（公告）日：2013-06-27

  The present invention relates to 2-oxo-1,3-dioxolane-4-carboxamides of formula (I), in which F½ can be, inter alia, an n-valent radical (n > 1), which is substituted with n-1 further 2-oxo-1,3-dioxolane-4-carboxamide groups of general formula (II), to processes for the preparation of these 2-oxo-1,3-dioxolane-4-carboxamides, to processes for the preparation of the 2-oxo-l,3-diox-olane-4-carboxylic acids of formula (III), which are suitable starting materials for the above processes, and to the use of said 2-oxo-1,3-dioxolane-4-carboxamides for the preparation of (poly)hydroxyurethanes, -hydroxycarbonates and -hydroxysulfanylformates, and also as end groups for the blocking of amines.

  本发明涉及式(I)的2-氧代-1,3-二氧杂环戊二酰胺，其中F½可以是n价基团（n > 1），该基团被n-1个进一步的通式(II)的2-氧代-1,3-二氧杂环戊二酰胺基团所取代，以及用于制备这些2-氧代-1,3-二氧杂环戊二酰胺的方法，用于制备通式(III)的2-氧代-1,3-二氧-杂环戊二酸的方法，该酸是上述方法的适用起始物质，并且用于制备（聚）羟基脲、-羟基碳酸酯和-羟基硫酰甲酸酯的所述2-氧代-1,3-二氧杂环戊二酰胺的用途，以及作为胺的阻滞末端基团。
• [EN] 2-OXO-1,3-DIOXOLANE-4-CARBOXAMIDE BUILDING BLOCKS, THEIR PREPARATION AND USE<br/>[FR] ÉLÉMENTS CONSTITUTIFS DE TYPE 2-OXO-1,3-DIOXOLANE-4-CARBOXAMIDE, LEUR PRÉPARATION ET UTILISATION
  申请人：CONSTR RES & TECH GMBH

  公开号：WO2014118268A1

  公开（公告）日：2014-08-07

  The present invention suggests a 2-oxo-1,3-dioxolane-4-carboxamide of formula (I), wherein R is an n-valent radical, n is an integer from 2 to 4, preferably from 2 to 3, and x is an integer from 1 to n-1. The invention furthermore suggests a process for the preparation of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) from 2-oxo-1,3- dioxolane-4-carboxylic acid of formula (II), with a polyisocyanate of the formula R(NCO)n, where R and n have the meanings given, the use of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) for the preparation of a 2-oxo-1,3-dioxolane-4-carboxamide-substituted prepolymer, and the 2-oxo-1,3-dioxolane-4-carboxamide-substituted prepolymer thus obtainable.

  本发明提出了一种式(I)的2-氧代-1,3-二氧杂环戊酰胺，其中R是一个n价基团，n是一个整数，范围从2到4，最好从2到3，x是一个整数，范围从1到n-1。此外，本发明提出了一种从式(II)的2-氧代-1,3-二氧杂环戊酸通过式R(NCO)n的多异氰酸酯的制备方法，其中R和n具有给定的含义，以及使用式(I)的2-氧代-1,3-二氧杂环戊酰胺制备2-氧代-1,3-二氧杂环戊酰胺取代预聚合物，以及由此获得的2-氧代-1,3-二氧杂环戊酰胺取代预聚合物。
• 2-oxo-1,3-dioxolane-4-carboxamide building blocks, their preparation and use
  申请人：Construction Research & Technology GmbH

  公开号：EP2762471A1

  公开（公告）日：2014-08-06

  The present invention suggests a 2-oxo-1,3-dioxolane-4-carboxamide of formula (I), wherein R is an n-valent radical, n is an integer from 2 to 10 and x is an integer from 1 to n-1. The invention furthermore suggests a process for the preparation of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) from 2-oxo-1,3-dioxolane-4-carboxylic acid of formula (II) with a polyisocyanate of the formula R(NCO)n, where R and n have the meanings given, and the use of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) for the preparation of a 2-oxo-1,3-dioxolane-4-carboxamide-substituted prepolymer.

  本发明提出了一种式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺， 其中R是一个n价基团，n是从2到10的整数，x是从1到n-1的整数。该发明进一步提出了一种从式(II)的2-氧代-1,3-二氧杂环戊烷-4-羧酸制备式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺的方法 与式R(NCO)n的多异氰酸酯反应，其中R和n具有所述的含义，并且使用式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺制备2-氧代-1,3-二氧杂环戊烷-4-羧酰胺取代预聚合物。