tetramethyl naphthalene-2,3,6,7-tetracarboxylate | 56110-97-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: tetramethyl naphthalene-2,3,6,7-tetracarboxylate
• 英文别名: Tetramethyl 2,3,6,7-naphthalenetetracarboxylate
• CAS: 56110-97-5
• 化学式: C₁₈H₁₆O₈
• 分子量: 360.32
• InChiKey: QZAVDLZLHCMERY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  26
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  tetramethyl naphthalene-2,3,6,7-tetracarboxylate 在 吡啶 、 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 2,3,6,7-tetrakis(acetoxymethyl)naphthalene
  参考文献：
  名称：

  Synthesis and Self-Assembly of Pseudo-Spherical Homo- and Heterodimeric Capsules

  摘要：

  Experimental details are given for the synthesis and characterization of several new molecules capable of self-assembly. The new molecules feature glycoluril subunits held apart by various rigid spacers, ethylene (2), naphthalene (3), and ethenoanthracene (4), and assemble through hydrogen bonds into pseudo-spherical dimeric capsules. The nature of their assembly is demonstrated by the X-ray crystal structure of capsules 1.1. The capsules are shown to enclose smaller guest molecules in a reversible manner. Direct evidence of the guest molecules inside the capsules from NMR is presented. In addition to self-assembling dimerically, these new molecules are shown to disproportionate into hybrid species or heterodimers. The resulting new capsules feature internal cavities of varying sizes and shapes. Formation of hybrid dimers 1.2, 1.4, and 3.4 is observed in solutions containing mixtures of two homodimers. The dispropoaionation equilibria could be manipulated by the addition of appropriately sized solvents as guests. Even the energetically unlikely hybrids 1.4 and 3.4 are found to be the dominant species when suitable guests such as CDBr3 are present. Evidence of the existence of the heterodimers is presented from NOE measurements. Factors controlling the heterodimerization are discussed.

  DOI：

  10.1021/ja00156a010
• 作为产物：
  描述：

  tetramethyl 1,4,5,8-tetrahydro-2,3,6,7-naphthalenetetracarboxylate 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 甲苯 为溶剂， 以100%的产率得到tetramethyl naphthalene-2,3,6,7-tetracarboxylate
  参考文献：
  名称：

  死于钯金。钯金和铂金的二丙烯酸乙二酯

  摘要：

  在氮丙烯与乙炔二羧酸酯或3-己炔-2,5-二酮2：2-共环化形成2,3,6,7-四取代的1,4,5时，二氮杂二烯稳定的四环戊二烯充当催化剂前体。在60°C下以高收率得到8-四氢萘。这些产物可以被2,3-二氯-5,6-二氰基对苯二甲酸定量氧化-苯醌（DDQ），生成2,3,6,7-四取代的萘。萘-2,3,6,7-四羧酸衍生物是用于制备热稳定的聚酰亚胺的令人感兴趣的起始化合物，但难以通过常规有机合成获得。Clasic有机多步程序的收率仅为16％至40％，而我们的催化方法只需简单的两步程序即可以82％的收率形成四甲酯。烯丙基醚甚至能够通过催化剂诱导的从最初形成的双（烷氧基）-四氢萘中消除醇而一锅合成（产率较低）。可以在化学计量反应中将4-亚甲基-四环戊环戊-2-烯与丙二烯衍生物（但不适用于丙二烯本身）和乙炔二羧酸二甲酯截留。铂上两个异戊二烯基团的偶联得到双（亚甲基）-金属环戊烷，其可以用作催化反应

  DOI：

  10.1016/0022-328x(94)80060-x

文献信息

• Die palladiumkatalysierte Cocyclisierung von Allenen mit elektronenarmen Alkinen. Einige Untersuchungen zur Kupplung von Allenderivaten mit Acetylendicarbonsäuredimethylester an Palladium und Platin
  作者：Constantin Stephan、Christina Munz、Heindirk tom Dieck

  DOI：10.1016/0022-328x(94)80060-x

  日期：1994.4

  ethers even enable a one-pot synthesis (with lower yields) via catalyst-induced elimination of alcohol from an initially formed bis(alkoxy)-tetrahydronaphthalene. 4-Methylidene-palladacyclopent-2-enes can be trapped in stoichiometric reactions with allene derivatives (but not allene itself) and dimethyl acetylenedicarboxylate. Coupling of two allene moieties on platinum affords bis(methylidene)-metallacyclopentanes

  在氮丙烯与乙炔二羧酸酯或3-己炔-2,5-二酮2：2-共环化形成2,3,6,7-四取代的1,4,5时，二氮杂二烯稳定的四环戊二烯充当催化剂前体。在60°C下以高收率得到8-四氢萘。这些产物可以被2,3-二氯-5,6-二氰基对苯二甲酸定量氧化-苯醌（DDQ），生成2,3,6,7-四取代的萘。萘-2,3,6,7-四羧酸衍生物是用于制备热稳定的聚酰亚胺的令人感兴趣的起始化合物，但难以通过常规有机合成获得。Clasic有机多步程序的收率仅为16％至40％，而我们的催化方法只需简单的两步程序即可以82％的收率形成四甲酯。烯丙基醚甚至能够通过催化剂诱导的从最初形成的双（烷氧基）-四氢萘中消除醇而一锅合成（产率较低）。可以在化学计量反应中将4-亚甲基-四环戊环戊-2-烯与丙二烯衍生物（但不适用于丙二烯本身）和乙炔二羧酸二甲酯截留。铂上两个异戊二烯基团的偶联得到双（亚甲基）-金属环戊烷，其可以用作催化反应
• LIQUID CRYSTAL COMPOSITION CONTAINING NITROGEN-CONTAINING CYCLIC COMPOUND AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20160208172A1

  公开（公告）日：2016-07-21

  The disclosure shows a liquid crystal composition that contains a compound having an effect of preventing photolysis of the liquid crystal composition and having high solubility in the liquid crystal composition, and that satisfies at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large positive or negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat, and a suitable elastic constant, etc. and so on. The disclosure shows a liquid crystal composition that contains a compound having the following azolidine ring (Q-1) or azepane ring (Q-2), a liquid crystal display device and so on.

  该披露显示了一种液晶组合物，其中包含一种化合物，具有防止液晶组合物光解的效果，并在液晶组合物中具有较高的溶解度，并且满足以下特征之一，如高最高温度、低最低温度、粘度小、适当的光学各向异性、大正或负介电各向异性、大特定电阻、对紫外光或热稳定性高，以及适当的弹性常数等。披露显示了一种液晶组合物，其中包含具有以下氮杂环（Q-1）或氮杂环（Q-2）的化合物，液晶显示器件等等。
• PIPERIDINE DERIVATIVE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20160090534A1

  公开（公告）日：2016-03-31

  To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), a liquid crystal composition contains the compound, and a liquid crystal display device includes the composition: M(Z-Q) a (R b ) b (1) wherein, in formula (1), a is 1 to 4, and b is a numerical value: (4−a); M is an organic group; Z is a single bond or the like; and Q is a monovalent group represented by formula (Q-1), (Q-2) or (Q-3), in which R a and R b are hydrogen, alkyl or the like.

  提供一种具有防止液晶组分光解作用的化合物，并在液晶组分中具有很高的溶解度，包括该化合物的液晶组合物和包括该组合物的液晶显示装置。该化合物由式(1)表示，液晶组合物中含有该化合物，液晶显示装置包括该组合物：M(Z-Q)a(Rb)b(1)其中，在式(1)中，a为1至4，b为数值：(4−a)；M为有机基团；Z为单键或类似物；Q为由式(Q-1)、(Q-2)或(Q-3)表示的一价基团，其中Ra和Rb为氢、烷基或类似物。
• Diazadiene als Steuerliganden in der homogenen Katalyse XIX. Palladium-katalysierte 2:2-Cyclisierung eines Alkins mit Allenen zu Naphthalin-2,3,6,7-tetracarbonsäurederivaten
  作者：Christina Munz、Constantin Stephan、Heindirk tom Dieck

  DOI：10.1016/0022-328x(90)85287-9

  日期：1990.9

  The diazadiene palladium(0) fragment catalyzes the cycloaddition of two moles of methoxyallene II (R = Me) and two moles of dimethyl acetylenedicarboxylate III to form a tetrahydronaphthalene derivative IV under very mild reaction conditions. At somewhat higher temperatures a naphthalene derivative V is obtained after palladium-induced loss of two moles of methanol. The use of allenic ethers II with

  的二氮杂二烯钯（0）催化片段两个摩尔的环加成methoxyallene II（R = Me）的和乙炔二的两个摩尔III以形成四氢化萘衍生物IV非常温和的反应条件下进行。在稍高的温度下，钯诱导的两摩尔甲醇损失后，得到萘衍生物V。具有更好的离去基团的烯丙醚II的使用不会提高V的产率。可以从不是催化反应中间体的反应混合物中分离出稳定的钯金环戊烯VI。使用苯氧丙二烯时，没有萘，而是共三聚产物VII形成了。
• Generation and characterization of the parent 2λ⁴δ²-thieno[3,4-c]thiophene
  作者：Juzo Nakayama、Akihiko Ishii、Yasunobu Kobayashi、Masamatsu Hoshino

  DOI：10.1039/c39880000959

  日期：——

  The parent 2λ4δ2-thieno[3,4-c]thiophene was generated by Pummerer dehydration of 1H,3H-thieno[3,4-c]thiophene 2-oxide and characterized by chemical trapping experiments.

  母体 2δ "4δ2-噻吩并[3,4-c]噻吩是通过 1H,3H-噻吩并[3,4-c]噻吩 2-氧化物的普默尔脱水生成的，并通过化学捕获实验进行了表征。