2-溴-苯并-1,4-二噁烷 | 121910-87-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并二恶英
• 中文名称: 2-溴-苯并-1,4-二噁烷
• 英文名称: 2-bromo-1,4-benzodioxin
• 英文别名: 2-Bromo-1,4-benzodioxine；3-bromo-1,4-benzodioxine
• CAS: 121910-87-0
• 化学式: C₈H₅BrO₂
• 分子量: 213.03
• InChiKey: XPQOPFJPEAHFMK-UHFFFAOYSA-N

物化性质

• 沸点：
  118 °C(Press: 20 Torr)
• 密度：
  1.718±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-溴-苯并-1,4-二噁烷 在 sodium tetrahydroborate 、 四(三苯基膦)钯 、 mercury(II) diacetate 、 sodium carbonate 、 sodium chloride 作用下， 以 乙醇 、 水 、 甲苯 为溶剂， 反应 8.25h， 生成 2,3-dihydro-2-hydroxy-2-phenyl-1,4-benzodioxin
  参考文献：
  名称：

  Convenient synthesis of 2,2-disubstituted-2,3-dihydro-1,4-benzodioxins from 2-substituted-2-hydroxy-2,3-dihydro-1,4-benzodioxins

  摘要：

  Convenient syntheses of relatively rare 2,2-disubstituted-2,3-dihydro-1,4-benzodioxins from 2-substituted-2-hydroxy 2,3-dihydro-1,4-benzodioxins, as key synthetic intermediates, are reported. These new synthetic approaches require Lewis acid BF3-Et(2)O mediated nucleophilic substitution reaction or cyclization of suitable hydroxyphenols. (C) 1997, Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4020(96)01140-4
• 作为产物：
  描述：

  2,3-二溴苯并-1,4-二噁烷 在 potassium tert-butylate 作用下， 以 乙醚 为溶剂， 反应 8.0h， 以83%的产率得到2-溴-苯并-1,4-二噁烷
  参考文献：
  名称：

  The Preparation and Coupling Reactions of 2-Bromo-1,4-benzodioxin. A Simple Synthesis of 2-(1-Alkenyl)-, 2-Alkyl-and 2-Aryl-1,4-benzodioxins

  摘要：

  2-溴-1,4-苯并二恶烷是由 2,3-二溴-2,3-二氢-1,4-苯并二恶烷与碱进行脱氢溴化反应制备而成。它可通过与相应的格氏试剂反应转化为 2-烷基、2-（1-烯基）和 2-芳基-1,4-苯并二恶烷，或通过转化为 2-（溴镁基）-1,4-苯并二恶烷并使这种格氏试剂与烷基、1-烯基或芳基卤化物反应转化为 2-溴-1,4-苯并二恶烷。

  DOI：

  10.1055/s-1989-27201

文献信息

• Biaryl-methanethio-, -sulphinyl- and sulphonyl derivatives
  申请人：CEPHALON, INC.

  公开号：EP1586559A1

  公开（公告）日：2005-10-19

  FIELD OF THE INVENTION The present invention is related to chemical compositions, processes for the preparation thereof and uses of the composition. Particularly, the present invention relates to compositions that include substituted biaryl-methanesulfinyl acetamides of Formula (I): wherein Ar, Y, R1, R2, R4, R5, q and x are as defined herein; and their use in the treatment of diseases, including treatment of sleepiness associated with narcolepsy, obstructive sleep apnea, or shift work disorder; Parkinson's disease; Alzheimer's disease; attention deficit disorder; attention deficit hyperactivity disorder; depression; or fatigue associated with a neurological disease; as well as the promotion of wakefulness.

  本发明涉及化学组合物、其制备方法以及组合物的用途。特别是，本发明涉及包括式（I）的取代联苯基-甲磺酰基乙酰胺的组合物： 其中Ar、Y、R1、R2、R4、R5、q和x如本文所定义；以及它们在治疗疾病中的用途，包括治疗与嗜睡症、阻塞性睡眠呼吸暂停或倒班工作障碍相关的嗜睡症、帕金森病、阿尔茨海默病、注意力缺陷障碍、注意力缺陷多动障碍、抑郁症或与神经系统疾病相关的疲劳，以及促进清醒。
• Thio-substituted tricyclic and bicyclic aromatic methanesulfinyl derivatives
  申请人：CEPHALON FRANCE

  公开号：EP1589016A1

  公开（公告）日：2005-10-26

  The present invention is related to chemical compositions, processes for the preparation thereof and uses of the composition. Particularly, the present invention relates to compositions of compounds of Formula (A): wherein Ar, Y, R1 and q are as defined herein; and their use in the treatment of diseases, including treatment of sleepiness, promotion of wakefulness, treatment of Parkinson's disease, cerebral ischemia, stroke, sleep apneas, eating disorders, stimulation of appetite and weight gain, treatment of attention deficit hyperactivity disorder ("ADHD"), enhancing function in disorders associated with hypofunctionality of the cerebral cortex, including, but not limited to, depression, schizophrenia, fatigue, in particular, fatigue associated with neurologic disease, such as multiple sclerosis, chronic fatigue syndrome, and improvement of cognitive dysfunction.

  本发明涉及化学组合物的制备过程及其用途。特别地，本发明涉及化合物(A)的组合物，其中Ar、Y、R1和q如本文中所定义；以及它们在治疗疾病中的应用，包括治疗嗜睡、促进清醒、治疗帕金森病、脑缺血、中风、睡眠呼吸暂停、进食障碍、刺激食欲和体重增加、治疗注意力缺陷多动障碍（“ADHD”）、增强与大脑皮层低功能相关的障碍的功能，包括但不限于抑郁症、精神分裂症、疲劳，尤其是与神经疾病如多发性硬化、慢性疲劳综合征相关的疲劳，以及改善认知功能障碍。
• Iridium-catalyzed asymmetric hydrogenation of 2-substituted 1,4-benzodioxines
  作者：Yanzhao Wang、Jingzhao Xia、Guoqiang Yang、Wanbin Zhang

  DOI：10.1016/j.tet.2017.12.015

  日期：2018.1

  An Ir-catalyzed asymmetric hydrogenation of 2-substituted 1,4-benzodioxines was developed for the preparation of chiral 1,4-benzodioxanes, which are present in numerous biologically active compounds and natural products. Our tropos biphenyl phosphine-oxazoline ligand is essential for obtaining good ee. A broad range of substrates were tolerable to the reaction conditions and gave the corresponding

  开发了Ir催化的2-取代的1,4-苯并二恶英的不对称氢化反应，用于制备手性的1,4-苯并二恶烷，该手性存在于许多生物活性化合物和天然产物中。我们的对位联苯膦-恶唑啉配体对于获得良好的ee是必不可少的。使用我们的Tropos膦-恶唑啉配体的Ir配合物，各种各样的底物可耐受反应条件，并以优异的收率和中等至良好的对映选择性提供相应的氢化产物。
• A versatile catalyst system for enantioselective synthesis of 2-substituted 1,4-benzodioxanes
  作者：Eugene Chong、Bo Qu、Yongda Zhang、Zachary P. Cannone、Joyce C. Leung、Sergei Tcyrulnikov、Khoa D. Nguyen、Nizar Haddad、Soumik Biswas、Xiaowen Hou、Katarzyna Kaczanowska、Michał Chwalba、Andrzej Tracz、Stefan Czarnocki、Jinhua J. Song、Marisa C. Kozlowski、Chris H. Senanayake

  DOI：10.1039/c8sc05612a

  日期：——

  We report the synthesis of enantiomerically enriched 1,4-benzodioxanes containing alkyl, aryl, heteroaryl, and/or carbonyl substituents at the 2-position. The starting 1,4-benzodioxines were readily synthesized via ring closing metathesis using an efficient nitro-Grela catalyst at ppm levels. Excellent enantioselectivities of up to 99:1 er were obtained by using the versatile catalyst system [Ir(c

  我们报道了2位含有烷基、芳基、杂芳基和/或羰基取代基的对映体富集的1,4-苯并二恶烷的合成。使用有效的硝基-Grela 催化剂，通过闭环复分解很容易合成起始 1,4-苯并二恶英，浓度为 ppm 水平。通过在 2-取代 1,4-苯并二恶英的不对称氢化中使用多功能催化剂体系 [Ir(cod)Cl] 2 /BIDIME-二聚体，获得了高达 99:1 er 的优异对映选择性。此外，DFT 计算表明该过程的选择性是由质子化步骤控制的；基底上的配位基团可能会改变与催化剂的相互作用，从而导致面选择性的变化。
• 유기 화합물 및 이를 포함하는 유기 전계 발광 소자
  申请人：DOOSAN CORPORATION 주식회사 두산(119987140410) Corp. No ▼ 110111-0013774BRN ▼107-81-00237

  公开号：KR20170076113A

  公开（公告）日：2017-07-04

  본 발명은 신규 화합물 및 이를 포함하는 유기 전계 발광 소자에 관한 것으로서, 본 발명에 따른 화합물은 유기 전계 발광 소자의 유기물층, 바람직하게는 정공 수송층 또는 발광 보조층에 사용됨에 따라 유기 전계 발광 소자의 발광 효율, 구동 전압, 수명 등을 향상시킬 수 있다.

  本发明涉及一种新化合物及其包含的有机电致发光器件，根据本发明所述的化合物，可以在有机电致发光器件的有机层中，特别是在载流子传输层或发光辅助层中使用，从而提高有机电致发光器件的发光效率、驱动电压和寿命等。