N-octyl-N'-benzylurea

• 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: N-octyl-N'-benzylurea
• 英文别名: 1-Benzyl-3-octylurea
• 化学式: C₁₆H₂₆N₂O
• 分子量: 262.395
• InChiKey: MLOZKRJAZLACIR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  19
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  辛胺 、 异氰酸苄酯 生成 N-octyl-N'-benzylurea
  参考文献：
  名称：

  Di-urea compounds as gelators for organic solvents

  摘要：

  Simple diurea compounds form thermoreversible gets with several organic solvents. These gels are stable up to temperatures of 100 degrees C, and can be stored for months. Electron microscopy reveals that in these solvents the gelation agents assemble into very thin rectangular sheets which are several tens of micrometers long. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/s0040-4039(96)02292-7

文献信息

• One-pot sequential synthesis of isocyanates and urea derivatives via a microwave-assisted Staudinger–aza-Wittig reaction
  作者：Diego Carnaroglio、Katia Martina、Giovanni Palmisano、Andrea Penoni、Claudia Domini、Giancarlo Cravotto

  DOI：10.3762/bjoc.9.274

  日期：——

  A fast and efficient protocol for the synthesis of N,N'-disubstituted urea derivatives from alkyl halides and primary or secondary amines has been developed. The synthetic pathway combines nucleophilic substitutions and a Staudinger-aza-Wittig reaction in the presence of polymer-bound diphenylphosphine under 14 bar of CO2 pressure and has been performed in a one-pot two-step process. The protocol has

  已开发出一种快速有效的方案，用于从烷基卤化物和伯胺或仲胺合成 N，N'-二取代脲衍生物。合成途径结合了亲核取代和 Staudinger-aza-Wittig 反应，在聚合物结合的二苯基膦存在下，在 14 bar 的 CO2 压力下，并在一个一锅两步法中进行。该协议在微波辐射下进行了优化，放大实验是在帕尔反应器的常规条件下进行的。最终化合物在简单过滤后以几乎定量的总产率分离，这使得该过程容易且快速执行。
• Solution casting method and polymer film
  申请人：Sugiura Masaru

  公开号：US20050077648A1

  公开（公告）日：2005-04-14

  A solvent in which dichloromethane is mixed with alcohol as a poor solvent is used for preparing a dope. Alcohol is supplied to the dope in a inline pipe to mix with a static mixer, such as a casting dope in which a composition of alcohol is increased. The temperature of the rotary drum is adjusted to −7° C. The casting dope is fed from a casting die to the rotary drum so as to form a casting film whose thickness is 40 μm. Since the content of alcohol is high and a storage modulus of the cooled casting film is at least 150 thousands Pa, the peeling defect does not occur, and the stretch is reduced as far as possible. A gel-like film is dried by a tenter type drying device, and stretched such that the stretch ratio is at most 110%. The produced film is thin and excellent in a surface condition and optical isotropy.

  二氯甲烷与作为劣质溶剂的酒精混合的溶剂用于制备涂料。酒精通过内联管道供应到涂料中，与静态混合器混合，如增加酒精成分的铸造涂料。将浇注料从浇注模具送入旋转滚筒，以形成厚度为 40 μm 的浇注膜。由于酒精含量高，冷却后的浇注膜的储存模量至少为 15 万帕，因此不会出现剥离缺陷，拉伸也尽可能减小。凝胶状薄膜由拉幅机干燥，拉伸率不超过 110%。生产出的薄膜很薄，表面状态和光学各向同性都很好。