2-(2-Bromo-ethyl)-4-phenyl-2H-phthalazin-1-one | 126278-22-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2-(2-Bromo-ethyl)-4-phenyl-2H-phthalazin-1-one
• 英文别名: 2-(2-Bromoethyl)-4-phenylphthalazin-1-one
• CAS: 126278-22-6
• 化学式: C₁₆H₁₃BrN₂O
• 分子量: 329.196
• InChiKey: OOPBEGYVYMWJDD-UHFFFAOYSA-N

物化性质

• 沸点：
  459.5±47.0 °C(Predicted)
• 密度：
  1.43±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(2-Bromo-ethyl)-4-phenyl-2H-phthalazin-1-one 以 乙醇 、 水 为溶剂， 生成 5-Phenyl-2,3-dihydro-1-oxa-4-aza-3a-azonia-cyclopenta[a]naphthalene; bromide
  参考文献：
  名称：

  构象平衡对涉及邻近基团参与的反应速率的影响

  摘要：

  相邻的肼基羰基可有效地辅助稠合溴代烷基邻苯二氮酮类的水解反应。已经发现预期的辅助嵌合顺序取决于链的长度。速率常数的相对较大值是由于分别对酞菁酮（）和2,3-二氢咪唑并[2,1-a]酞嗪酮（）附加的溴乙基链的构象平衡的计算分析所坚定地支持的熵效应。该分析的结果与激活熵值非常吻合。

  DOI：

  10.1016/s0040-4020(01)92238-0
• 作为产物：
  描述：

  4-phenyl-2-(2-hydroxyethyl)phthalazin-1-one 在 氢溴酸 、 sodium bromide 作用下， 反应 0.08h， 生成 2-(2-Bromo-ethyl)-4-phenyl-2H-phthalazin-1-one
  参考文献：
  名称：

  溴烷基邻苯二氮酮和异构的恶唑啉鎓盐作为中间体和合成子

  摘要：

  2（ω-哌啶子基烷基）酞嗪-1（2H）-1可以由2-羟基烷基化合物制备，既可以是开链的2-溴烷基衍生物，也可以是它们的环状异构体。溴烷基化合物的取代反应可以通过极性溶剂和肼基羰基部分的邻近基团效应来辅助。亲核分子在三环中间体中的稠合的恶唑啉鎓盐环上以开环键合到与氧键合的饱和碳上，攻击环上的稠合恶唑啉鎓环。仅在具有恶唑啉鎓和强吸电子am基部分的四环双阳离子中发现将哌啶加成至不饱和亚氨基-碳。

  DOI：

  10.1016/s0040-4020(01)89500-4

文献信息

• Novel antiasthmatic agents with dual activities of thromboxane A2 synthetase inhibition and bronchodilation. 1. 2-[2-(1-Imidazolyl)alkyl]-1(2H)-phthalazinones
  作者：Masahisa Yamaguchi、Kenshi Kamei、Takaki Koga、Michitaka Akima、Toshio Kuroki、Nobuhiro Ohi

  DOI：10.1021/jm00077a008

  日期：1993.12

  A number of 4-substituted 2-[omega-(1-imidazolyl)allryl]-1(2H)-phthalazinones were synthesized in order to develop agents possessing both thromboxane Az synthetase inhibitory and bronchodilatory activities. The pharmacological evaluation of these compounds disclosed that they have both activities to various extents. Both activities were slightly dependent on the length of the 2-substituents and largely affected by the nature of the 4-substituents. Compounds bearing phenyl and thienyl groups exhibited relatively high and well-rounded activities. Among these compounds, 12j and 15f were found to be the most effective agents having well-rounded activities in vitro and in vivo. Introduction of a carboxyl group reduced both activities contrary to our expectation. 4-(3-Pyridyl)phthalazinone 18b was of particular interest because of unexpectedly high in vivo activities in spite of an absence of significant in vitro activities.
• Bromoalkylphthalazinones and isomeric oxazolinium salts as intermediates and synthons
  作者：A. Csámpai、K. Körmendy、P. Sohár、F. Ruff

  DOI：10.1016/s0040-4020(01)89500-4

  日期：1989.1

  compounds both the open-chain 2-bromoalkyl derivatives and their cyclic isomers. Substitution reactions of bromoalkyl compounds may be assisted by polar solvents and by neighbouring group effect of hydrazinocarbonyl moiety. Nucleophiles attack the condensed oxazolinium ring in tricyclic intermediates at the saturated carbon bonded to the oxygen with ring opening. Addition of piperidine to unsaturated

  2（ω-哌啶子基烷基）酞嗪-1（2H）-1可以由2-羟基烷基化合物制备，既可以是开链的2-溴烷基衍生物，也可以是它们的环状异构体。溴烷基化合物的取代反应可以通过极性溶剂和肼基羰基部分的邻近基团效应来辅助。亲核分子在三环中间体中的稠合的恶唑啉鎓盐环上以开环键合到与氧键合的饱和碳上，攻击环上的稠合恶唑啉鎓环。仅在具有恶唑啉鎓和强吸电子am基部分的四环双阳离子中发现将哌啶加成至不饱和亚氨基-碳。
• The effect of conformational equilibrium on rate of reactions involving neighbouring group participation
  作者：A. Csámpai、Ö. Farkas

  DOI：10.1016/s0040-4020(01)92238-0

  日期：1992.2

  bromoalkylphthalazinones type is efficiently assisted by the neighbouring hydrazinocarbonyl group. The expected order of anchimeric assistance has been found to be dependent on the chain length. The relatively large values of rate constants are due to an entropy effect firmly supported by computed analysis of the conformational equilibria for the bromoethyl chain appended to phthalazinone () and 2,3-dihydroimidazo

  相邻的肼基羰基可有效地辅助稠合溴代烷基邻苯二氮酮类的水解反应。已经发现预期的辅助嵌合顺序取决于链的长度。速率常数的相对较大值是由于分别对酞菁酮（）和2,3-二氢咪唑并[2,1-a]酞嗪酮（）附加的溴乙基链的构象平衡的计算分析所坚定地支持的熵效应。该分析的结果与激活熵值非常吻合。