2,7-dimethyl-benzo[1,2-d;4,5-d']bis[1,3]oxazine-4,9-dione | 22438-03-5

• 分子结构分类: 有机化合物 - 苯类化合物
• 英文名称: 2,7-dimethyl-benzo[1,2-d;4,5-d']bis[1,3]oxazine-4,9-dione
• 英文别名: 2,7-Dimethyl-benzo[1,2-d;4,5-d']bis[1,3]oxazin-4,9-dion；1,3-Oxazino[4,5-g]-3,1-benzoxazine-4,9-dione, 2,7-dimethyl-；2,7-dimethyl-[1,3]oxazino[4,5-g][3,1]benzoxazine-4,9-dione
• CAS: 22438-03-5
• 化学式: C₁₂H₈N₂O₄
• 分子量: 244.207
• InChiKey: MNHSAWSMVMHWPN-UHFFFAOYSA-N

物化性质

• 熔点：
  323-325 °C
• 沸点：
  475.7±55.0 °C(Predicted)
• 密度：
  1.57±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  77.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2,7-dimethyl-benzo[1,2-d;4,5-d']bis[1,3]oxazine-4,9-dione 在 硝酸 、 sodium methylate 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.17h， 生成 6-acetamido-7-(methylcarbamoyl)-2,3-dimethyl-8-nitroquinazolin-4(3H)-one
  参考文献：
  名称：

  Synthesis and electrochemistry of pyrimidoquinazoline-5,10-diones. Design of hydrolytically stable high potential quinones and new reductive alkylation systems

  摘要：

  DOI：

  10.1021/jo00253a010
• 作为产物：
  描述：

  2,5-二氨基对苯二甲酸 在 乙酸酐 作用下， 以 水 、 溶剂黄146 为溶剂， 反应 5.0h， 生成 2,7-dimethyl-benzo[1,2-d;4,5-d']bis[1,3]oxazine-4,9-dione
  参考文献：
  名称：

  Synthesis and electrochemistry of pyrimidoquinazoline-5,10-diones. Design of hydrolytically stable high potential quinones and new reductive alkylation systems

  摘要：

  DOI：

  10.1021/jo00253a010

文献信息

• Molecular structure and conformational dynamics of 3,12-dichloro-5,14-diphenyl-7,9a,16,18a-tetrazadibenzo[a,l]pentacene-9, 18-dione
  作者：A. Yu. Kovalevsky、O. V. Shishkin、I. A. Ronova、I. I. Ponomarev、S. V. Lindeman、Yu. A. Volkova

  DOI：10.1007/bf02503775

  日期：1997.11

  18a-tetrazadibenzo[a,l]pentacene-9,18-dione (1), a model compound for a novel class of thermostable polyheteroarylenes, polyquinoquinazolones, has been carried out. The nonsymmetric flattened structure of the molecule observed is a result of intermolecular interactions. It was established using quantum-chemical calculations by the semiempirical AM1 method that the annelation of the 1,6-dihydropyrimidinone

  3,12-dichloro-5,14-diphenyl-7,9a,16,18a-tetrazadibenzo[a,l]pentacene-9,18-dione (1) 的 X 射线研究，新类别的模型化合物热稳定的聚杂亚芳基，聚喹唑啉酮，已经进行。观察到的分子的非对称扁平结构是分子间相互作用的结果。通过半经验AM1方法使用量子化学计算确定，芳香环对1,6-二氢嘧啶酮环的退火导致二氢环的构象灵活性增加，因为羰基与剩余的π-之间的共轭减弱。分子体系。X 射线研究和量子化学计算表明，由于 1 的巨大贡献，1 的质子化导致分子结构发生实质性变化，1,6-二氢嘧啶酮环结构的4-二氢互变异构形式。揭示了杂环的构象灵活性在质子化时增加的趋势。
• Process for producing aromatic polyesters having increased degrees of polymerization and moulded articles composed of these polyesters
  申请人：TEIJIN LIMITED

  公开号：EP0019061A1

  公开（公告）日：1980-11-26

  A process for producing an aromatic polyester having an increased degree of polymerization. The process comprises reacting a hydroxyl-terminated, substantially linear, fiber-forming aromatic polyester having an aromatic dicarboxylic acid as a main acid component at an elevated temperature with a bi-cyclic imino ester compound of formula (I) or formula (II). According to the process, the molecularchains of the aromatic polyester are bonded to each other by the terminal hydroxyl groups thereof to form rapidly the aromatic polyester having an increased degree of polymerization. I Bis-oxazolones 11 Bis-oxazinones e.g.

  一种生产聚合度提高的芳香族聚酯的工艺。该工艺包括在高温下使以芳香族二羧酸为主要酸组分的羟基封端、基本线性的芳香族聚酯与式 (I) 或式 (II) 的双环亚氨基酯化合物反应。根据该工艺，芳香族聚酯的分子链通过其末端羟基相互键合，从而快速形成聚合度提高的芳香族聚酯。 I 双噁唑酮 11 双噁唑酮，例如
• POLYESTER FILM BEING EASY TO ADHERE TO INK RECEIVING LAYER
  申请人：Teijin Dupont Films Japan Limited

  公开号：EP1426404A1

  公开（公告）日：2004-06-09

  A polyester adhesive film readily adhering to an ink-receiving layer comprising a coating layer having a surface energy of 54 to 70 dyne/cm and a polyester film containing an ultraviolet light absorber, wherein at least one surface of the polyester film is coated with the coating layer. Accordingly, there is provided the polyester adhesive film readily adhering to an ink-receiving layer, having excellent adhesiveness to an ink-receiving layer, excellent transparency and weatherability and useful as image-receiving paper and the like for ink jet printers.

  一种易于粘附到受墨层的聚酯粘合膜，包括表面能量为 54 至 70 达因/厘米的涂层和含有紫外线吸收剂的聚酯薄膜，其中聚酯薄膜的至少一个表面涂有涂层。 因此，本发明提供了易于粘附到受墨层的聚酯胶膜，该胶膜与受墨层的粘附性极佳，具有极佳的透明度和耐候性，可用作喷墨打印机的图像接收纸等。
• ADHESIVE POLYESTER FILM FOR OPTICAL USE
  申请人：Teijin Dupont Films Japan Limited

  公开号：EP1452309A1

  公开（公告）日：2004-09-01

  An optical adhesive polyester film comprising (A) a polyester film layer containing an aromatic polyester and an ultraviolet absorber and (B) a coating formed on at least one surface of the polyester film (A). The coating (B) contains at least one polymer selected from the group consisting of a coating polyester having a glass transition point of 40 to 100°C and an acryl polymer having a glass transition point of 20 to 80°C in an amount of 50 to 95% by weight based on the coating. The optical adhesive polyester film is disposed on the front of a plasma display so as to block externally incoming ultraviolet light.

  一种光学粘合聚酯薄膜，包括(A)含有芳香族聚酯和紫外线吸收剂的聚酯薄膜层和(B)在聚酯薄膜(A)的至少一个表面上形成的涂层。涂层 (B) 包含至少一种聚合物，选自玻璃化转变点为 40 至 100°C 的涂层聚酯和玻璃化转变点为 20 至 80°C 的丙烯酸聚合物组成的组，含量为涂层重量的 50 至 95%。光学粘合剂聚酯薄膜被放置在等离子显示器的正面，以阻挡从外部射入的紫外线。
• Near infrared ray shielding film
  申请人：——

  公开号：US20030186040A1

  公开（公告）日：2003-10-02

  A near infrared screening film which consists of a biaxially oriented film made from a polyester containing a near infrared light absorber having a weight reduction start temperature of at least 280 ° C. and which has a haze value of 5% or less and a total transmittance for visible lights having a wavelength of 400 to 650 nm of 40% or more and which is exemplified by having optical properties at visible and near infrared ranges which satisfy the following expressions (1) to (4): 1< T (850)<20  (1) 1< T (950)<20  (2) −10< T (620)− T (540)<10  (3) −10< T (450)− T (540)<10  (4) wherein T(450), T(540), T(620), T(850) and T(950) are light transmittances at wavelengths of 450 nm, 540 nm, 620 nm, 850 nm and 950 nm, respectively. This film is inexpensive, has high handling ease, a high visible light transmittance and the function of preventing the malfunction of peripheral equipment caused by near infrared lights from the screen of a plasma display, for example, and can be suitably used in the front panel of the plasma display.

  一种近红外筛选薄膜，由聚酯制成的双向拉伸薄膜构成，该薄膜含有近红外光吸收剂，其减重起始温度至少为 280 摄氏度，其雾度值不超过 5%，对波长为 400 至 650 纳米的可见光的总透射率不超过 40%，在可见光和近红外范围的光学性能满足以下表达式(1)至(4)： 1< T (850)<20 (1) 1< T (950)<20 (2) -10< T (620)- T (540)<10 (3) -10< T (450)- T (540)<10 (4) 其中，T(450)、T(540)、T(620)、T(850)和 T(950) 分别是波长为 450 纳米、540 纳米、620 纳米、850 纳米和 950 纳米时的透光率。 这种薄膜价格低廉、易于操作、可见光透射率高，还具有防止等离子显示器屏幕上的近红外线光等引起外围设备故障的功能，可适当用于等离子显示器的前面板。