ethyl 8-bromo-4-oxo-4H-1-benzopyran-2-carboxylate | 115237-23-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: ethyl 8-bromo-4-oxo-4H-1-benzopyran-2-carboxylate
• 英文别名: ethyl 8-bromo-4-oxo-4H-chromene-2-carboxylate；Ethyl-8-Bromo-4-oxo-4H-chromene-2-carboxylate；Ethyl-8-Bromo4-oxo-4H-chromene-2-carboxylate；ethyl 8-bromo-4-oxochromene-2-carboxylate
• CAS: 115237-23-5
• 化学式: C₁₂H₉BrO₄
• 分子量: 297.105
• InChiKey: CTZQDUNDLLYSFG-UHFFFAOYSA-N

物化性质

• 熔点：
  125-126 °C
• 沸点：
  383.3±42.0 °C(Predicted)
• 密度：
  1.602±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  丙烯醛缩二乙醇 、 ethyl 8-bromo-4-oxo-4H-1-benzopyran-2-carboxylate 在 palladium diacetate 、 三(邻甲基苯基)磷 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 120.0 ℃ 、303.97 kPa 条件下， 反应 5.0h， 以39%的产率得到ethyl (2-ethoxycarbonyl-4-oxo-4H-1-benzopyran-8-yl)propanoate
  参考文献：
  名称：

  取代的4 H -1-苯并吡喃-4-酮（色酮）：通过钯催化将其卤代衍生物与烯烃偶联

  摘要：

  溴色酮的活化是通过将Pd 0插入碳-卤素键来实现的。所得的物质与烯烃偶联，产生乙烯基化的色酮。乙烯基化区域特异性地在溴化的原始位置发生，因此提供了将取代基干净地引入色酮环系统的方法。描述了二溴苯甲酮的异常反应导致开环产物。

  DOI：

  10.1039/p19870002597
• 作为产物：
  描述：

  1,4-Diethyl 2-(2-bromophenoxy)-2-butenedioate 在 polyphosphoric acid 作用下， 以 neat (no solvent) 为溶剂， 生成 ethyl 8-bromo-4-oxo-4H-1-benzopyran-2-carboxylate
  参考文献：
  名称：

  An Efficient Construction of 4-Oxo-4H-chromene-2-carboxylate Derivatives via One-Pot Cascade Reaction Under Solvent-Free Conditions

  摘要：

  An efficient synthetic strategy to chromone derivatives from commercially available diethyl acetylenedicarboxylate and phenols via a one-pot cascade reaction has been developed. Performing the reaction using pyridine and polyphosphoric acid as the catalyst at room temperature and 90 degrees C without any solvent gave the chromone derivatives in good to high yields at one time. A possible reaction pathway was also proposed and supported by the experiment. This protocol is environmentally friendly and metal-free, with advantages including short reaction times, convenient operation, and mild reaction conditions.

  DOI：

  10.3987/com-15-13191

文献信息

• Therapeutic heterocyclic compounds
  申请人：——

  公开号：US20030013708A1

  公开（公告）日：2003-01-16

  Provided herein is a compound having the formula (I): 1 Wherein said compounds are useful for the treatment of psychiatric disorders including but not limited to depression, generalized anxiety, eating disorders, dementia, panic disorder, and sleep disorders. The compounds may also be useful in the treatment of gastrointestinal disorders, cardiovascular regulation, motor disorders, endocrine disorders, vasospasm and sexual dysfunction. The compounds are 5HT 1B and 5HT 1D antagonists.

  本文提供的化合物具有以下式（I）： 其中所述化合物可用于治疗精神障碍，包括但不限于抑郁症、广泛性焦虑、进食障碍、痴呆症、恐慌障碍和睡眠障碍。这些化合物还可能用于治疗胃肠道障碍、心血管调节、运动障碍、内分泌障碍、血管痉挛和性功能障碍。这些化合物是5HT 1B和5HT 1D拮抗剂。
• Therapeutic chromone compounds
  申请人：——

  公开号：US20040087575A1

  公开（公告）日：2004-05-06

  Provided herein is a compound of the formula (I) wherein said compound is useful for the treatment of psychiatric disorders including but not limited to depression, generalized anxiety, eating, disorders, dementia, panic disorder, and sleep disorders. The compounds may also be useful in the treatment of gastrointestinal disorders, cardiovascular regulation, motor disorders, endocrine disorders, vasospasm and sexual dysfunction. The compounds are 5HT 1B antagonists. Also provided herein are processes for making compounds of Formula (I) and intermediate compounds.

  本文提供的是一种化合物，其化学式为（I），其中该化合物可用于治疗包括但不限于抑郁症、广泛性焦虑、进食障碍、痴呆症、恐慌障碍和睡眠障碍在内的精神疾病。这些化合物也可能对治疗胃肠道疾病、心血管调节、运动障碍、内分泌失调、血管痉挛和性功能障碍有用。这些化合物是5HT 1B 拮抗剂。本文还提供了制备化合物（I）和中间体化合物的方法。
• Therapeutic chroman compounds
  申请人：——

  公开号：US20040110745A1

  公开（公告）日：2004-06-10

  Provided herein is a compound represented by the Formula (I) wherein said compounds are useful for the treatment of migraine. Also provided are processes for the preparation of compounds of Formula (I) and intermediates.

  本文提供的是一种化合物，其化学式表示为（I），其中这些化合物对治疗偏头痛有用。还提供了制备化合物（I）和中间体的方法。
• [EN] ANTI-INFECTIVE AGENTS<br/>[FR] AGENTS ANTI-INFECTIEUX
  申请人：UNIV DUNDEE

  公开号：WO2017221002A1

  公开（公告）日：2017-12-28

  The present invention relates to a novel class of chromene-2-carboxamide compounds inhibitors of general formula (I) wherein R1, R2, R3, R4, R5, R6, R7, R8 and X are as defined herein, to their use in medicine, and their use as anti-infective agents in particular, to compositions containing them, to processes for their preparation and to intermediates used in such processes.

  本发明涉及一类新型的基于色酮-2-羧酰胺化合物的抑制剂，其通式为(I)，其中R1、R2、R3、R4、R5、R6、R7、R8和X如本文所定义，其在医学上的用途，特别是作为抗感染剂的用途，包括含有它们的组合物，其制备过程以及用于这些过程的中间体。
• [EN] THERAPEUTIC QUINOLINE COMPOUNDS WITH 5-HT-ANTAGONISTIC PROPERTIES<br/>[FR] COMPOSES THERAPEUTIQUES A BASE DE QUINOLINE, ANTAGONISTES DES 5-HT
  申请人：ASTRAZENECA AB

  公开号：WO2003037872A1

  公开（公告）日：2003-05-08

  Provided herein is a compound having the formula (I), (R2 is typically a tertiary nitrogen atom, being either alkyl-substituted or member of a heterocyclic ring; R7 is typically a monocyclic or bicyclic aromatic ring or a heterocyclic ring) wherein said compounds are useful for the treatment of psychiatric disorders including but not limited to depression, generalized anxiety, eating disorders, dementia, panic disorder, and sleep disorders. The compounds may also be useful in the treatment of gastrointestinal disorders, cardiovascular regulation, motor disorders, endocrine disorders, vasospasm and sexual dysfunction. The compounds are 5HT1B and 5HT1D antagonists.

  本文提供的化合物具有式(I)，其中(R2通常是三级氮原子，可以是烷基取代或杂环环中的成员；R7通常是单环或双环芳香环或杂环环)，其中所述化合物可用于治疗精神障碍，包括但不限于抑郁症、广泛性焦虑症、进食障碍、痴呆症、惊恐障碍和睡眠障碍。该化合物也可能用于治疗胃肠疾病、心血管调节、运动障碍、内分泌障碍、血管痉挛和性功能障碍。该化合物是5HT1B和5HT1D拮抗剂。