1,2,2-trimethyl-1,3-pentanediol | 42412-51-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,2,2-trimethyl-1,3-pentanediol
• 英文别名: 3,3-Dimethylhexandiol-2,4；3,3-dimethyl-hexane-2,4-diol；3,3-Dimethylhexane-2,4-diol
• CAS: 42412-51-1
• 化学式: C₈H₁₈O₂
• 分子量: 146.23
• InChiKey: ULJJXDAGVBDQBJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,2,2-trimethyl-1,3-pentanediol 、 2-氯-5-硝基三氟甲苯 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以54.92%的产率得到(+)-cis-1,3-bis(4-nitro-2(trifluoromethyl)phenoxylmethylene)-1,2,2-trimethylcyclopentane
  参考文献：
  名称：

  A new series of fluorinated alicyclic-functionalized polyimides derivated from natural-(D)-camphor: Synthesis, structure–properties relationships and dynamic dielectric analyses

  摘要：

  series of novel fluorinated alicyclic-functionalized polyimides (FPI-x) were prepared from a new alicyclic-functionalized diamine, 1,3-bis ((4-amino-2-(trifluoromethyl)phenoxylmethylene)-1,2,2-trimethyl cyclopentane (BAFMT), which was derivated from natural-(D)-camphor via multi-step process. The influence of the presence of the alicyclic and fluorinated structure on the general properties of the polymers was systematically investigated in terms of optical, thermal and mechanical properties, solubility and hydrophobicity, rendering the general structure properties relationships for the FPI-x. Compared with the analogous control aromatic polyimide NPI-x, FPI-x shows better solubility, improved optical transparency, lower moisture absorption and surface energy, owing to the presence of the fluorine-containing group and alicyclic structure in the polymer chain. Although presenting a slight decrease as compared with NPI-x, the good thermal stability of polyimide was retained on the large in the fluorinated alicyclic-functionalized polymer FPI-x, with Tg ranging in 197-233 degrees C and T-d5 ranging in 374-420 degrees C. A particular research emphasis were placed on employing the dielectric relaxation technique to study the dielectric constant (e), dielectric loss (epsilon") and electric modulus (M") of the fluorinated alicyclic-functionalized polyimide film FPI-4 and its control sample NPI-4. The observed dielectric relaxations have been fully studied by integrating the contributions of the specific structure and functional groups. It is revealed that the presence of fluorinated alicyclic-functionalized group endows FPI-4 with lower dielectric constant e (2.88 at 1 MHz and 25 degrees C) and dielectric loss epsilon" (0.0058 at 1 Hz and 25 degrees C) than NPI-4 (3.49 and 0.0084) and commercial Kapton HN (3.19 and 0.006) with the same measurement frequency and temperature. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.polymer.2013.08.014
• 作为产物：
  描述：

  3,3-二甲基己烷-2,4-二酮 在 氢氧化钾 、 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 生成 1,2,2-trimethyl-1,3-pentanediol
  参考文献：
  名称：

  Tavernier,D.; Anteunis,M., Bulletin des Societes Chimiques Belges, 1973, vol. 82, p. 405 - 411

  摘要：

  DOI：

文献信息

• CONCENTRATED, WATER DISPERSIBLE, STABLE, FABRIC SOFTENING COMPOSITIONS
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0839179A1

  公开（公告）日：1998-05-06
• CONCENTRATED, STABLE FABRIC SOFTENING COMPOSITIONS INCLUDING CHELANTS
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0839180A1

  公开（公告）日：1998-05-06
• CONCENTRATED, STABLE FABRIC SOFTENING COMPOSITION
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0842250A1

  公开（公告）日：1998-05-20
• FABRIC SOFTENING COMPOUND/COMPOSITION
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0888424A1

  公开（公告）日：1999-01-07
• SUBSTANTIALLY ODOR-FREE POLYHYDROXYL SOLVENTS
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0918842A1

  公开（公告）日：1999-06-02