5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,4-dihydro-2H-pyran | 916168-54-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,4-dihydro-2H-pyran
• 英文别名: 5-(4-ethoxy-2,3-difluorophenyl)-2-pentyl-3,4-dihydro-2H-pyran
• CAS: 916168-54-2
• 化学式: C₁₈H₂₄F₂O₂
• 分子量: 310.384
• InChiKey: PKAWBPPRXFVXFR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,6-dihydro-2H-pyran 、 5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,4-dihydro-2H-pyran 在 5% palladium over charcoal 氢气 作用下， 以 四氢呋喃 为溶剂， 50.0 ℃ 、500.01 kPa 条件下， 以34%的产率得到5-(4-ethoxy-2,3-difluoro-phenyl)-2-trans-pentyl-tetrahydropyran
  参考文献：
  名称：

  WO2006/125550

  摘要：

  公开号：
• 作为产物：
  描述：

  3-(4-ethoxy-2,3-difluoro-phenyl)-6-pentyl-tetrahydropyran-3-ol 在 吡啶 、 氯化亚砜 作用下， 生成 5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,6-dihydro-2H-pyran 、 5-(4-ethoxy-2,3-difluoro-phenyl)-2-pentyl-3,4-dihydro-2H-pyran
  参考文献：
  名称：

  WO2006/125550

  摘要：

  公开号：

文献信息

• DIHYDROPYRAN COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20150252264A1

  公开（公告）日：2015-09-10

  To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to ultraviolet light and heat, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy and excellent compatibility with other liquid crystal compounds, and a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound includes a compound represented by formula (1): wherein, R a and R b are alkyl or the like; A 1 , A 2 and A 3 are 1,4-cyclohexylene, 1,4-phenylene or the like; G is a divalent group represented by formula (pr-1) or (pr-2); wherein, Z 1 , Z 2 and Z 3 are a single bond, alkylene or the like; and a and b are 0, 1, 2 or 3, and a sum of a and b is 4 or less.

  提供一种液晶化合物，满足至少一种物理性质，如对紫外线和热的高稳定性、高清晰点、液晶相的最低温度低、小粘度、适当的光学各向异性、大介电各向异性以及与其他液晶化合物的良好相容性，并提供一种包含该化合物的液晶组合物和一种包括该组合物的液晶显示装置。该化合物包括式（1）所表示的化合物：其中，Ra和Rb是烷基或类似物；A1、A2和A3是1,4-环己烯基、1,4-苯基或类似物；G是由式（pr-1）或（pr-2）所表示的二价基团；其中，Z1、Z2和Z3是单键、烷基或类似物；a和b分别为0、1、2或3，a和b的总和小于等于4。
• Liquid crystal composition and liquid crystal display device
  申请人：JNC CORPORATION

  公开号：US10174252B2

  公开（公告）日：2019-01-08

  A liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component. The composition may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy as a fourth component, or a specific compound having a polymerizable group as an additive component.

  一种液晶组合物具有负介电各向异性，包含作为第一组分的具有较大负介电各向异性的特定化合物和作为第二组分的具有较小粘度的特定化合物。该组合物还可包含具有较高最高温度或较小粘度的特定化合物作为第三组分，具有负介电各向异性的特定化合物作为第四组分，或具有可聚合基团的特定化合物作为添加组分。
• LIQUID CRYSTAL COMPOUND HAVING A 3,6-DIHYDRO-2H-PYRAN RING, NEGATIVE DIELECTRIC ANISOTROPY, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20160230094A1

  公开（公告）日：2016-08-11

  A problem is to provide a liquid crystal compound satisfying at least one physical property, such as high stability to heat and light, a high clearing point (or high maximum temperature), a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. A means is a compound represented by formula (1): in which, R a and R b are alkyl having 1 to 10 carbons; ring A 1 , ring A 2 and ring A 3 are 1,4-cyclohexylene, 1,4-phenylene; and ring N 1 is 2,3-difluoro-1,4-phenylene; G is a divalent group represented by formula (pr-1) or (pr-2); in which, Z 1 , Z 2 , Z 3 and Z 4 are a single bond; and a, b and c are 0, 1 or 2, for example.
• LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20160244668A1

  公开（公告）日：2016-08-25

  A liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat, or has a suitable balance regarding at least two of the characteristics. The liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component. The composition may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy as a fourth component, or a specific compound having a polymerizable group as an additive component.
• US9523038B2
  申请人：——

  公开号：US9523038B2

  公开（公告）日：2016-12-20