2-cyclohexyl-4H-benzo[d][1,3]oxazin-4-one | 25437-74-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 英文名称: 2-cyclohexyl-4H-benzo[d][1,3]oxazin-4-one
• 英文别名: 2-cyclohexyl-4H-3,1-benzoxazin-4-one；2-cyclohexyl-3,1-benzoxazin-4-one
• CAS: 25437-74-5
• 化学式: C₁₄H₁₅NO₂
• 分子量: 229.279
• InChiKey: MAKPFHFTCPNVEO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  38.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-cyclohexyl-4H-benzo[d][1,3]oxazin-4-one 在 ammonium hydroxide 作用下， 以 乙醇 为溶剂， 反应 48.0h， 以85%的产率得到2-cyclohexylquinazolin-4(3H)-one
  参考文献：
  名称：

  4-Quinazolinones: synthesis and reduction of prostaglandin E2 production

  摘要：

  We synthesized and evaluated the anti-inflammatory activity of a series of 4-quinazolinone derivatives. Two approaches were used to yield the title compounds. A first group of quinazolinone derivatives was obtained by the appropriate substituted anthranilates. A second group of quinazolinone compounds was prepared through the benzoxazin-4-ones intermediate. The pharmacological results reveal that the synthesized derivatives exhibit a significant anti-inflammatory effect in an experimental ocular inflammation model. In fact, all the tested compounds lowered the prostaglandin E-2 (PGE(2)) production with respect to the control group (P < 0.05). The 3-cyclohexyl-6-chloro-quinazolin-4(3H)-one and 3-cyclohexyl-quinazolin-4(3H)-one derivatives were the most active compounds. These compounds significantly reduced PGE(2) levels even more than the reference drug tolmetin and significantly lower protein concentration and polymorphonuclear leukocytes number compared to the control group (P < 0.05). Therefore, these compounds may be useful to prevent ocular inflammatory reactions. (C) 1999 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0014-827x(99)00102-0
• 作为产物：
  描述：

  2-(cyclohexanecarboxamido)benzoic acid 在 乙酸酐 作用下， 生成 2-cyclohexyl-4H-benzo[d][1,3]oxazin-4-one
  参考文献：
  名称：

  Ruthenium(II) Catalyzed Regiospecific C–H/O–H Annulations of Directing Arenes via Weak Coordination

  摘要：

  Ruthenium(II) catalyzed oxidative CH/OH annulations have been demonstrated using two different directing arenes viz. 2-arylquinolinone and 2-arylbenzoxazinone with internal alkynes. Regiospecific annulations have been observed for both directing arenes via the assistance of weaker carbonyl oxygen in the presence of a stronger nitrogen-directing site. In this substrate-controlled convergent protocol the weaker directing group dictates the annulation path.

  DOI：

  10.1021/acs.orglett.5b02967

文献信息

• Selective Oxidative Decarbonylative Cleavage of Unstrained C(<i>sp</i>³)–C(<i>sp</i>²) Bond: Synthesis of Substituted Benzoxazinones
  作者：Ajay Verma、Sangit Kumar

  DOI：10.1021/acs.orglett.6b02142

  日期：2016.9.2

  A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp3)–C(sp2) bond employing iodine, sodium bicarbonate, and tbutyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and

  通过使用碘，碳酸氢钠和叔丁基过氧化氢在DMSO中对未应变的C（sp 3）-C（sp 2）键进行选择性氧化脱羰裂解，建立了与生物相关的苯并恶嗪酮的无过渡金属（TM）实用合成方法在95°C下。控制实验和密度泛函理论（DFT）计算表明，该反应涉及[1,5] H转变和CO气体挤出作为关键步骤。还使用PMA–PdCl 2建立了CO的挤出。
• Pd‐Catalyzed Carbonylative Synthesis of 4 <i>H</i> ‐Benzo[ <i>d</i> ][1,3]Oxazin‐4‐Ones Using Benzene‐1,3,5‐Triyl Triformate as the CO Source
  作者：Yan Zheng、Mengke Dong、Erdong Qu、Jin Bai、Xiao‐Feng Wu、Wanfang Li

  DOI：10.1002/chem.202103137

  日期：2021.11.22

  A Pd-catalyzed CO-free carbonylative synthesis of 4H-benzo[d][1,3]oxazin-4-one derivatives was developed. This new method employed readily available N-(o-bromoaryl)amides as the starting materials and inexpensive benzene-1,3,5-triyl triformate (TFBen) as the stable solid CO surrogate, which would not cause hydrodehalogenation of the starting materials. Remarkably, this method featured a very broad

  开发了 Pd 催化的 4 H -benzo[ d ][1,3]oxazin-4-one 衍生物的无 CO 羰基化合成。这种新方法使用容易获得的N -（邻溴芳基）酰胺作为起始原料，使用廉价的三甲酸苯-1,3,5-三酯（TFBen）作为稳定的固体 CO 替代物，不会引起起始原料的加氢脱卤。值得注意的是，该方法具有非常广泛的底物范围，特别适用于将苯并[ d ][1,3]oxazin-4-one结构引入药物和天然生物活性化合物中。
• Low color, low sodium benzoxazinone UV absorbers and process for making same
  申请人：——

  公开号：US20030096889A1

  公开（公告）日：2003-05-22

  The present invention relates to benzoxazinone compounds having a yellow index less than about 0, and a sodium concentration less than about 50 ppm. This invention also relates to a process for preparing these compounds comprising the step of reacting an isatoic anhydride with approximately stoichiometric amounts of an acylating compound, where the isatoic anhydride is purified by re-crystallization or other purification methods.

  本发明涉及具有黄指数小于约0和钠浓度小于约50 ppm的苯并噁唑酮化合物。本发明还涉及一种制备这些化合物的方法，包括将异恶唑酸酐与大约化学计量量的酰化化合物反应的步骤，其中异恶唑酸酐通过重结晶或其他纯化方法纯化。
• Construction of Benzoxazinones from Anilines and Their Derivatives
  作者：Teng-Fei Zhao、Xiao-Li Xu、Wei-Yin Sun、Yi Lu

  DOI：10.1021/acs.orglett.3c01511

  日期：2023.7.14

  Herein we report a strategy concerning Rh(III)-catalyzed direct ortho-C–H bond carbonylation to construct benzoxazinones from anilines and their derivatives with high atom economy. Interestingly, the corresponding amides were generated in situ from anilines when excess Ac2O was added and directed the following C–H bond carbonylation to form benzoxazinones. Extensive functional group tolerance can be

  在此，我们报道了一种Rh(III)催化的直接邻-C-H键羰基化反应，以苯胺及其高原子经济性衍生物构建苯并恶嗪酮的策略。有趣的是，当添加过量的Ac 2 O时，苯胺原位生成相应的酰胺，并引导随后的C-H键羰基化形成苯并恶嗪酮。当安装烷基酰胺导向基团时，可以实现广泛的官能团耐受性。此外，该方法可以方便地对一些带有芳胺基团的药物进行衍生化，显示出其潜在的应用前景。
• 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。