2-(2-bromo-5-methoxyphenyl)-2-methylpropanal | 1206451-02-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(2-bromo-5-methoxyphenyl)-2-methylpropanal
• CAS: 1206451-02-6
• 化学式: C₁₁H₁₃BrO₂
• 分子量: 257.127
• InChiKey: OSZQUXJXTLDRLO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  14.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  2-(2-bromo-5-methoxyphenyl)-2-methylpropanal 在 palladium diacetate 、 caesium carbonate 、 R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下， 以 1,4-二氧六环 为溶剂， 以96%的产率得到3-methoxy-8,8-dimethylbicyclo[4.2.0]octa-1,3,5-trien-7-one
  参考文献：
  名称：

  Pd-Catalyzed Intramolecular Acylation of Aryl Bromides via C−H Functionalization: A Highly Efficient Synthesis of Benzocyclobutenones

  摘要：

  A new catalyst system for the intramolecular acylation of aldehydes with aryl bromides via C-H functionalization is described. The transformation is distinguished by a remarkable functional group tolerance and hence allows for the synthesis of a wide variety of highly functionalized benzocyclobutenones with a diverse set of substitution patterns from simple and easily accessible precursors.

  DOI：

  10.1021/ja909811t
• 作为产物：
  描述：

  2-(2-bromo-5-methoxyphenyl)-2-methylpropanenitrile 在 二异丁基氢化铝 、 盐酸 、 水 作用下， 以 正己烷 、 二氯甲烷 、 乙酸乙酯 为溶剂， 以3.49 g的产率得到2-(2-bromo-5-methoxyphenyl)-2-methylpropanal
  参考文献：
  名称：

  Pd-Catalyzed Intramolecular Acylation of Aryl Bromides via C−H Functionalization: A Highly Efficient Synthesis of Benzocyclobutenones

  摘要：

  A new catalyst system for the intramolecular acylation of aldehydes with aryl bromides via C-H functionalization is described. The transformation is distinguished by a remarkable functional group tolerance and hence allows for the synthesis of a wide variety of highly functionalized benzocyclobutenones with a diverse set of substitution patterns from simple and easily accessible precursors.

  DOI：

  10.1021/ja909811t

文献信息

• Mechanistic Switch via Subtle Ligand Modulation: Palladium-Catalyzed Synthesis of α,β-Substituted Styrenes via CH Bond Functionalization
  作者：Areli Flores-Gaspar、Ruben Martin

  DOI：10.1002/adsc.201100140

  日期：2011.5

  new catalyst system able to efficiently perform the synthesis of styrenes via CH bond functionalization and a subtle ligand modification are described. The high level of activity achieved allows for the synthesis of highly functionalized α,β‐substituted styrenes, even the elusive E‐configured trisubstituted olefins, in a regio‐ and stereoselective manner. Mechanistic experiments allowed for the identification

  能够有效地进行苯乙烯的合成的新的催化剂体系通过Ç  H键官能化和微妙的配位基修饰的描述。所获得的高活性可以以区域和立体选择性的方式合成高度官能化的α，β取代的苯乙烯，甚至是难以捉摸的E构型的三取代烯烃。机理实验允许鉴定相应的合成中间体。