2-pentyl cyclohexanecarboxylate

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-pentyl cyclohexanecarboxylate
• 英文别名: 4-trans-Pentyl cyclohexane carboxylic acid；pentan-2-yl cyclohexanecarboxylate
• 化学式: C₁₂H₂₂O₂
• 分子量: 198.305
• InChiKey: DRYBEAFNKKGQSO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-戊醇 、 2,2,2-tribromoethyl cyclohexanecarboxylate 在 4-二甲氨基吡啶 、 三丁基膦 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以63%的产率得到2-pentyl cyclohexanecarboxylate
  参考文献：
  名称：

  使用磷（III）试剂将2,2,2-三卤代乙酯与胺和醇直接进行酰基转移，以进行还原性裂解和原位活化。

  摘要：

  酰胺和酯是由一锅中的2,2,2-三卤代乙基酯使用磷-（III）试剂作为还原剂合成的，所得羧酸盐被活化为酰氧基phosph中间体，并通过胺或醇亲核试剂原位捕集。使用六甲基亚磷酸三酰胺（Me2N）3P作为还原剂，可以高收率合成仲酰胺和叔酰胺，包括二肽。使用三丁基膦和DMAP可获得来自伯醇和仲醇的酯的最佳收率。三溴乙基酯提供的收率优于三氯乙基酯获得的收率。

  DOI：

  10.1021/jo991711m

文献信息

• Esterification of sterically hindered acids and alcohols in fluorous media
  作者：Badra Gacem、Gérard Jenner

  DOI：10.1016/s0040-4039(02)02872-1

  日期：2003.2

  Sterically hindered esterification reactions are best performed in specific fluorous media in the presence of catalytic amounts of diphenylammonium triflate. Fluorous media, in addition to their positive effect on yields, have inherent favorable properties respecting environment and permitting simple work-up. Highly congested reagents, however, react only marginally.

  最好在特定的氟介质中，在催化量的三氟甲磺酸二苯铵存在下，进行位阻酯化反应。氟介质除了对产量有积极影响外，还具有固有的有利于环境的特性，可简化处理过程。但是，高度拥挤的试剂仅发生少量反应。
• Process for preparing positive-negative blended optical retardation film, positive-negative blended optical retardation film, and liquid crystal display element and liquid crystal display device using the same
  申请人：National Chiao Tung University

  公开号：US20040201797A1

  公开（公告）日：2004-10-14

  The invention provides a process for preparing a positive-negative-blended optical retardation film comprising coating a solution consisting of discotic and rod-like liquid crystal onto an alignment layer after unidirectionally rubbing treatment on a substrate, subsequently heating the coating to obtain a film consisting of discotic and rod-like liquid crystal with uniform arrangement, and then curing it through exposing under a UV-irradiation to obtain a positive-negative-blended optical retardation film with excellent viewing angle; and a positive-negative-blended optical retardation film. Further, the invention also provides a liquid crystal element and a liquid crystal device having said positive-negative-blended optical retardation film.

  本发明提供了一种正负混合型光缓膜的制备方法，包括在基底上单向摩擦处理后，将由盘状液晶和棒状液晶组成的溶液涂布在配向层上，随后加热涂布层，得到由均匀排列的盘状液晶和棒状液晶组成的薄膜，然后在紫外线照射下固化，得到视角极佳的正负混合型光缓膜；以及一种正负混合型光缓膜。此外，本发明还提供了一种液晶元件和液晶装置，该液晶元件和液晶装置具有所述正负混合型光缓膜。
• One-Pot Synthesis of Amides and Esters from 2,2,2-Trihaloethyl Esters Using Phosphorus(III) Reagents
  作者：Jeremy J. Hans、Russell W. Driver、Steven D. Burke

  DOI：10.1021/jo9823700

  日期：1999.3.1
• Micropattern retardation element
  申请人：Matsunaga Daisaku

  公开号：US20070134442A1

  公开（公告）日：2007-06-14

  The present invention relates to a micropattern retardation element requiring no stretch processing and no extremely high positioning accuracy in cutting films, and the like, and having the retardation region controlled in width of a micron unit, and a producing method therefore. Said micropattern retardation element can be obtained by forming a liquid crystalline or non liquid crystalline polymer thin film layer having photoactive groups, on a substrate, and then, after orientation treatment in a micropattern form, forming a birefringence layer so as to contact with said polymer thin film layer, so that birefringence molecules of said birefringence layer are oriented according to orientation of photoactive groups in said thin film. Said retardation element is used in a three-dimensional display, and the like.
• US4761473A
  申请人：——

  公开号：US4761473A

  公开（公告）日：1988-08-02