2-phenyl-5-p-tolylpyrimidine | 51328-45-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2-phenyl-5-p-tolylpyrimidine
• 英文别名: 2-Phenyl-5-p-tolyl-pyrimidine；5-(4-methylphenyl)-2-phenylpyrimidine
• CAS: 51328-45-1
• 化学式: C₁₇H₁₄N₂
• 分子量: 246.312
• InChiKey: DAQHPBQZNBNLDP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  异氰酸叔丁酯 、 苄脒盐酸盐 、 4-甲苯基乙炔 在 Ti(NMe₂)₂(dpma) 、 环己胺 作用下， 以 甲苯 、 2-甲基-2-丁醇 为溶剂， 反应 48.0h， 以40%的产率得到2-phenyl-5-p-tolylpyrimidine
  参考文献：
  名称：

  Titanium catalyzed one-pot multicomponent coupling reactions for direct access to substituted pyrimidines

  摘要：

  A titanium-catalyzed 3-component coupling reaction can be used to generate tautomers of 1,3-diimines. These diimines produced in situ undergo condensation with amidines in a one-pot procedure to provide substituted pyrimiclines. Seventeen examples of pyrimidines are provided using this one-pot, 4-component procedure from simple starting materials. In some cases, catalyst architecture can be tuned to control the regioselectivity of the alkyne addition. Finally, the regioselectivity of amidine addition to unsymmetrical 1,3-diimines is discussed. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.02.066

文献信息

• Cyclohexene derivative having alkenyl, liquid crystal composition and liquid crystal display device
  申请人：Shimada Teru

  公开号：US20080063814A1

  公开（公告）日：2008-03-13

  A liquid crystal compound selected from a group of compounds represented by formula (a): wherein Ra and Rb are each independently hydrogen, alkyl having 1 to 10 carbons or alkenyl having 2 to 10 carbons, provided that in the alkyl, —CH 2 — may be replaced by —O—, but plural —O— are not adjacent to each other, and hydrogen may be replaced by fluorine; ring A 1 and ring A 2 are each independently trans-1,4-cyclohexylene or 1,4-phenylene, provided that one or two hydrogens of the 1,4-phenylene may be replaced by halogen, and in a 6-membered ring of these groups, one —CH 2 — or two —CH 2 — that are not adjacent to each other may be replaced by —O—, and one or two —CH═ may be replaced by —N═; Z 1 and Z 2 are each independently a single bond, —(CH 2 ) 2 —, —(CH 2 ) 4 —, —CH═CH—, —C≡—, —CH 2 O—, —OCH 2 —, —COO—, —OCO— or —OCF 2 —; l and m are each independently 0, 1 or 2, provided that l+m is 0, 1, 2 or 3; and n is an integer of from 0 to 6, provided that in —(CH 2 ) n —, —CH 2 — may be replaced by —O—, but plural —O— are not adjacent to each other, and hydrogen may be replaced by fluorine.

  从由式（a）表示的化合物组中选择的液晶化合物： 其中Ra和Rb分别独立地是氢、具有1至10个碳的烷基或具有2至10个碳的烯基，前提是在烷基中，-CH2-可以被-O-替换，但多个-O-不相邻，氢可以被氟替换；环A1和环A2分别独立地是反-1,4-环己烯基或1,4-苯基，前提是1,4-苯基的一个或两个氢可以被卤素替换，在这些基团的6元环中，一个不相邻的-CH2-或两个不相邻的-CH2-可以被-O-替换，一个或两个-CH═可以被-N═替换；Z1和Z2分别独立地是单键，-(CH2)2-，-(CH2)4-，-CH═CH-，-C≡-，-CH2O-，-OCH2-，-COO-，-OCO-或-OCF2-；l和m分别独立地是0、1或2，前提是l+m为0、1、2或3；n是0至6的整数，前提是在-(CH2)n-中，-CH2-可以被-O-替换，但多个-O-不相邻，氢可以被氟替换。
• Chlorofluorobenzene liquid crystal compound, liquid crystal composition and liquid crystal display device
  申请人：Goto Yasuyuki

  公开号：US20080075891A1

  公开（公告）日：2008-03-27

  A liquid crystal compound selected from a group of compounds represented by formula (a): wherein Ra and Rb are each independently alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons, alkenyl having 2 to 10 carbons, alkenyloxy having 2 to 9 carbons, fluoroalkyl having 1 to 10 carbons or fluoroalkoxy having 1 to 9 carbons; ring A 1 , ring A 2 and ring A 3 are each independently trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl, trans-tetrahydropyran-2,5-diyl, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene, pyridine-2,5-diyl, 6-fluoropyridine-2,5-diyl or pyridazine-2,5-diyl; Z 1 , Z 2 and Z 3 are each independently a single bond, —(CH 2 ) 2 —, —CH═CH—, —C≡C—, —CH 2 O, —OCH 2 —, —COO—, —OCO—, —OCF 2 —, —CF 2 O—, —CH 2 CH 2 OCF 2 — or —CF 2 OCH 2 CH 2 —; l, m and n are each independently 0, 1 or 2, provided that l+m+n is 0, 1, 2 or 3; one of X 1 and X 2 is fluorine, and the other is chlorine; Q is and atoms comprising the compound each may be an isotope thereof.

  从由式（a）表示的化合物组中选择的液晶化合物： 其中Ra和Rb分别独立地是具有1至10个碳的烷基，具有1至9个碳的烷氧基，具有2至9个碳的烷氧基烷基，具有2至10个碳的烯基，具有2至9个碳的烯氧基，具有1至10个碳的氟烷基或具有1至9个碳的氟烷氧基；环A1，环A2和环A3分别独立地是反式-1,4-环己烷基，反式-1,3-二噁烷-2,5-二基，反式-四氢吡喃-2,5-二基，1,4-苯基，2-氟-1,4-苯基，2,3-二氟-1,4-苯基，2,5-二氟-1,4-苯基，2,6-二氟-1,4-苯基，吡啶-2,5-二基，6-氟吡啶-2,5-二基或吡啶并嗪-2,5-二基；Z1，Z2和Z3分别独立地是单键，—(CH2)—，—CH═CH—，—C≡C—，—CH2O，—OCH2—，—COO—，—OCO—，—OCF2—，—CF2O—，—CH2CH2OCF2—或—CF2OCH2CH2—；l，m和n分别独立地为0，1或2，前提是l+m+n为0，1，2或3；X1和X2中的一个是氟，另一个是氯；Q是 化合物中的原子均可是其同位素。
• Gas-phase thermolysis of thieno[3,2-e][1,2,4]triazines. Interesting routes towards heterocyclic ring systems
  作者：Yehia A. Ibrahim、Nouria A. Al-Awadi、Maher R. Ibrahim

  DOI：10.1016/j.tet.2004.07.076

  日期：2004.10

  Gas-phase thermolysis of thieno[3,2-e][1,2,4]triazines gave benzonitrile, isothiazole, pyrimidine, [1]benzothieno[2,3-d]pyrimidine and thieno[3,2-d]thiazole derivatives. A mechanism of these pyrolytic transformation was proposed. Two new and efficient syntheses of the starting thieno[3,2-e][1,2,4]triazines were reported.

  噻吩并[3,2- e ] [1,2,4]三嗪的气相热解得到苄腈，异噻唑，嘧啶，[1]苯并噻吩并[ 2,3- d ]嘧啶和噻吩并[3,2- d ]噻唑衍生品。提出了这些热解转化的机理。报道了起始的噻吩并[3,2- e ] [1,2,4]三嗪的两种新的有效合成方法。
• Electroluminescent materials grafted with charge transport moieties having graded ionization potential or electrophilic property and their application in light-emitting diodes
  申请人：Chen Show-An

  公开号：US20090066238A1

  公开（公告）日：2009-03-12

  This invention provides new electroluminescent materials such as a conjugated polymer or a phosphorescent organometallic complex, which are grafted with multiple charge transport moieties with graded ionization potential or electrophilic property. The charge transport moieties can be all hole transport moieties or all electron transport moieties. The emissive electroluminescent materials covering the full visible range can be prepared. Organic light emitting diodes prepared with these materials can be used as indicators, light source and display for cellular phones, digital camera, pager, portable computer, personal data acquisition (PDA), watch, hand-held videogame, and billboard, etc.

  该发明提供了新的电致发光材料，例如共轭聚合物或磷光有机金属配合物，它们被嫁接了多个带有分级电离势或亲电性的电荷传输基团。这些电荷传输基团可以全部是空穴传输基团或全部是电子传输基团。可以制备覆盖整个可见光范围的发光电致发光材料。使用这些材料制备的有机发光二极管可以用作手机、数码相机、寻呼机、便携式电脑、个人数据采集器（PDA）、手持视频游戏和广告牌等的指示器、光源和显示器。
• FOUR-RING LIQUID CRYSTAL COMPOUND HAVING LATERAL FLUORINE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：Kobayashi Masahide

  公开号：US20110090450A1

  公开（公告）日：2011-04-21

  The invention provides a liquid crystal compound which has stability to heat, light and so forth, a nematic phase in a wide temperature range, a small viscosity, a large optical anisotropy, and a suitable elastic constant K 33 , and further has a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Moreover, the invention provides a liquid crystal composition comprising this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. A liquid crystal compound represented by formula (a): for example, R 1 and R 2 are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; ring A 1 and ring A 2 are 1,4-phenylene or trans-1,4-cyclohexylene; L 1 and L 2 are hydrogen or fluorine, and at least one of L 1 and L 2 is fluorine; and Z 1 and Z 2 are a single bond, —(CH 2 ) 2 —, —CH═CH—, —CH 2 O— or —OCH 2 —.

  本发明提供一种液晶化合物，具有耐热、耐光等稳定性，在广泛的温度范围内具有向列相，粘度小，光学各向异性大，适当的弹性常数K33，进一步具有适当且负的介电各向异性，与其他液晶化合物具有良好的相容性。此外，本发明还提供了包含该液晶化合物的液晶组合物和包含该液晶组合物的液晶显示装置。一种由公式（a）表示的液晶化合物：例如，R1和R2是具有1至10个碳原子的烷基，具有2至10个碳原子的烯基或具有1至9个碳原子的烷氧基；环A1和环A2是1,4-苯撑基或反-1,4-环己撑基；L1和L2是氢或氟，且至少有一个是氟；Z1和Z2是单键，-(CH2)2-，-CH═CH-，-CH2O-或-OCH2-。