1,4-Dimethyl-2,6,7-trioxabicyclo<2.2.2>octane | 27761-61-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,4-Dimethyl-2,6,7-trioxabicyclo<2.2.2>octane
• 英文别名: 1,4-dimethyl-2,6,7-trioxa-bicyclo[2.2.2]octane；1,4-Dimethyl-2,6,7-trioxa-bicyclo<2.2.2>octan；1,4-Dimethyl-2.6.7-trioxa-bicyclo<2.2.2>octan；1,4-Dimethyl-2,6,7-thioxabicyclo<2.2.2>octan；1,4-Dimethyl-2,6,7-trioxabicyclo<2.2.2>octan；1.4-Dimethyl-2,6,7-trioxabicyclo<2.2.2>octan；2,6,7-Trioxabicyclo(2.2.2)octane, 1,4-dimethyl-；1,4-dimethyl-2,6,7-trioxabicyclo[2.2.2]octane
• CAS: 27761-61-1
• 化学式: C₇H₁₂O₃
• 分子量: 144.17
• InChiKey: GDZAVHGIQPTDDN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  1,1,1-三(羟甲基)乙烷 在 三氟化硼乙醚 吡啶 、 氢氧化钾 、 碳酸二乙酯 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 24.25h， 生成 1,4-Dimethyl-2,6,7-trioxabicyclo<2.2.2>octane
  参考文献：
  名称：

  Rakus, Klaus; Verevkin, Sergey P.; Peng, Wei-Hong, Liebigs Annalen, 1995, # 12, p. 2059 - 2068

  摘要：

  DOI：

文献信息

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

  公开号：US20150368272A1

  公开（公告）日：2015-12-24

  To provide a liquid crystal compound satisfying at least one physical property such as high stability to light, a high clearing point, low minimum temperature of a liquid-crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant, excellent compatibility with other liquid crystal compounds. The compound is represented by formula (1-1): for example, R is alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons, rings A 1 to A 3 are 1,4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which at least one hydrogen is replaced by halogen; X is halogen, —CF 3 or —OCF 3 ; l is 1, and m, n is 0 or 1; W 1 is a group represented by formula (1a) or (1b); W 2 is a group represented by formula (1c) or (1d); Y 1 to Y 2 are hydrogen, Y 3 to Y 5 and L 1 to L 5 are fluorine.

  提供一种液晶化合物，满足至少一种物理性质，如对光的高稳定性、高清晰点、液晶相的低最低温度、小粘度、适当的光学各向异性、大介电各向异性、次轴方向上的大介电常数、适当的弹性常数、与其他液晶化合物的优良相容性。该化合物由式（1-1）表示：例如，R是具有1至10个碳原子的烷基或具有1至9个碳原子的烷氧基，环A1到A3为1,4-环己烯基、1,4-苯基或其中至少一个氢原子被卤素取代的1,4-苯基；X为卤素、—CF3或—O ；l为1，m、n为0或1；W1为由式（1a）或（1b）表示的基团；W2为由式（1c）或（1d）表示的基团；Y1到Y2为氢，Y3到Y5和L1到L5为氟。
• CARBOHYDRATE-BASED DRUG DELIVERY POLYMERS AND CONJUGATES THEREOF
  申请人：Kozlowski Antoni

  公开号：US20110171716A1

  公开（公告）日：2011-07-14

  Provided herein are water-soluble carbohydrate polymers which are monoderivatized at their reducing terminus, such that the carbohydrate polymers can be selectively conjugated at a single location. Also provided are methods of preparation and conjugation of the monoderivatized carbohydrate polymers.

  本文提供的是水溶性碳水化合物聚合物，它们在其还原端单一衍生化，因此可以在单一位置选择性地结合碳水化合物聚合物。还提供了制备和结合单一衍生化碳水化合物聚合物的方法。
• ORTHOESTER DERIVATIVE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：Masukawa Tokifumi

  公开号：US20140021407A1

  公开（公告）日：2014-01-23

  The invention is to provide a liquid crystal compound having a large dielectric anisotropy, a high voltage holding ratio and stability to heat, light and so forth, maintaining a nematic phase in a wide temperature range, having a suitable optical anisotropy and an excellent compatibility with other liquid crystal compounds, particularly, to provide a liquid crystal compound having a large dielectric anisotropy. The invention provides compound (1): In the formula, for example, R 1 is alkyl having 1 to 20 carbons; ring A 1 , ring A 2 , ring A 3 , ring A 4 , ring A 5 and ring A 6 are independently 1,4-cyclohexylene or 1,4-phenylene; Z 1 , Z 2 , Z 3 , Z 4 , Z 5 , Z 6 and Z 7 are independently a single bond, —(CH 2 ) 2 —, —COO—, —OCO—, —CF 2 O—, —OCF 2 — or —CH═CH—; X 1 is fluorine, —CF 3 or —OCF 3 ; and Y 1 and Y 2 are independently hydrogen or fluorine.

  本发明旨在提供一种具有大的介电各向异性、高电压保持比和对热、光等的稳定性，在广泛的温度范围内保持向列相，具有适当的光学各向异性和与其他液晶化合物良好的相容性，特别是提供一种具有大的介电各向异性的液晶化合物。本发明提供化合物(1)：其中，在公式中，例如，R1是具有1至20个碳的烷基；环A1、环A2、环A3、环A4、环A5和环A6独立地是1,4-环己亚甲基或1,4-苯亚甲基；Z1、Z2、Z3、Z4、Z5、Z6和Z7独立地是单键，-(CH2)2-，-COO-，-OCO-，-CF2O-，-OCF2-或-CH═CH-；X1是氟、-CF3或-O ；而Y1和Y2独立地是氢或氟。
• DIARYLETHENE COMPOUNDS AND USES THEREOF
  申请人：SWITCH MATERIALS, INC.

  公开号：US20160083398A1

  公开（公告）日：2016-03-24

  A compound according to Formula IA and IB, reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer A and a ring-closed isomer B is provided. For substitutent groups, Z is N, O or S; each R 1 is independently selected from the group consisting of H, or halo; each R 2 is independently selected from the group consisting of H, halo, a polymer backbone, alkyl or aryl; or, when both R 2 together form —CH═CH— and form part of a polymer backbone; each R 3 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl; each R 4 is aryl; and each R 5 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl.

  本发明提供了一种按照式IA和IB的化合物，在光致变色和电致变色条件下，可在环开放异构体A和环闭合异构体B之间可逆地转化。对于取代基，Z为N、O或S；每个R1独立地选自H或卤素；每个R2独立地选自H、卤素、聚合物骨架、烷基或芳基；或者，当两个R2一起形成-CH═CH-并形成聚合物骨架的一部分时；每个R3独立地选自H、卤素、烷基、烷氧基、硫代烷基或芳基；每个R4为芳基；每个R5独立地选自H、卤素、烷基、烷氧基、硫代烷基或芳基。
• Switch element comprising a liquid-crystalline medium
  申请人：Merck Patent GmbH

  公开号：EP2423294A1

  公开（公告）日：2012-02-29

  The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-95 % of a compound of the formula (I), in particular for use in the switch elements according to the invention.

  本发明涉及一种开关元件，它具有热致伸缩性，可在辐射能的低透射状态和辐射能的高透射状态之间切换，它由液晶介质组成。本发明还涉及利用开关元件调节室内空间与环境之间的辐射能流以及调节室内空间的温度。本发明还涉及一种液晶介质，其特征在于它包含 5-95 % 的式 (I) 化合物，特别是用于本发明的开关元件中。