1-(4-bromophenyl)ethyl benzoate | 19771-07-4

• 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: 1-(4-bromophenyl)ethyl benzoate
• 英文别名: 1-(4-Bromophenyl)ethyl benzoate
• CAS: 19771-07-4
• 化学式: C₁₅H₁₃BrO₂
• 分子量: 305.171
• InChiKey: NPCKOQMPPGMOQO-UHFFFAOYSA-N

物化性质

• 沸点：
  386.6±17.0 °C(Predicted)
• 密度：
  1.377±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-(4-溴苯基)-1-乙醇 、 苯甲酸 在 PPh₃-containing polystyrene non-cross-linked polymer 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以70%的产率得到1-(4-bromophenyl)ethyl benzoate
  参考文献：
  名称：

  Direct Radical Polymerization of 4-Styryldiphenylphosphine:  Preparation of Cross-Linked and Non-Cross-Linked Triphenylphosphine-Containing Polystyrene Polymers

  摘要：

  We report herein a simple synthesis of 4-styryl-diphenylphosphine and the radical copolymerization of it with styrene, both with and without a cross-linker, to directly form cross-linked and non-cross-linked polystyrene supported triphenylphosphine in which the level of phosphine incorporation can be easily and accurately controlled. The utility of these polymers is demonstrated by their use in Mitsunobu and alcohol bromination reactions.

  DOI：

  10.1021/jo035226+

文献信息

• Benzylic-acetoxylation of alkylbenzenes with PhI(OAc)2 in the presence of catalytic amounts of TsNH2 and I2
  作者：Haruka Baba、Katsuhiko Moriyama、Hideo Togo

  DOI：10.1016/j.tetlet.2011.06.036

  日期：2011.8

  Treatment of alkylbenzenes with (diacetoxyiodo)benzene in the presence of catalytic amounts of p-toluenesulfonamide or p-nitrobenzenesulfonamide, and molecular iodine in 1,2-dichloroethane at 60 °C gave the corresponding (α-acetoxy)alkylbenzenes in good to moderate yields. The present reaction is a simple method for the introduction of an acetoxy group to the benzylic position of alkylbenzenes.

  在催化量的对甲苯磺酰胺或对硝基苯磺酰胺的存在下，用（二乙酰氧基碘）苯处理烷基苯，在60°C下于1,2-二氯乙烷中用分子碘制得相应的（α-乙酰氧基）烷基苯。本反应是将乙酰氧基引入烷基苯的苄基位置的简单方法。
• Benzylic C–H Esterification with Limiting C–H Substrate Enabled by Photochemical Redox Buffering of the Cu Catalyst
  作者：Dung L. Golden、Chaofeng Zhang、Si-Jie Chen、Aristidis Vasilopoulos、Ilia A. Guzei、Shannon S. Stahl

  DOI：10.1021/jacs.3c01662

  日期：2023.5.3

  Copper-catalyzed radical-relay reactions provide a versatile strategy for selective C–H functionalization; however, reactions with peroxide-based oxidants often require excess C–H substrate. Here, we report a photochemical strategy to overcome this limitation by using a Cu/2,2′-biquinoline catalyst that supports benzylic C–H esterification with limiting C–H substrate. Mechanistic studies indicate that

  铜催化的自由基中继反应为选择性 C-H 官能化提供了一种通用策略；然而，与过氧化物基氧化剂的反应通常需要过量的 C-H 底物。在这里，我们报告了一种光化学策略，通过使用 Cu/2,2'-联喹啉催化剂来克服这一限制，该催化剂支持限制 C-H 底物的苄基 C-H 酯化反应。机理研究表明，蓝光照射促进羧酸盐到铜的电荷转移，将静止态 Cu II还原为 Cu I，从而激活过氧化物以生成烷氧基自由基氢原子转移物质。这种“光化学氧化还原缓冲”引入了一种独特的策略来维持自由基接力反应中铜催化剂的活性。
• Synthetic Electrochemistry Enabled Esterification via Oxidative Mesolytic Cleavage of Alkoxyamines
  作者：Kevin Lee、Dante Gilberti、Clairissa Yom、Jacob Meza、Jamere Stewart、Michael Lee、Justin Alvarez、Abigail Hart、Justin Zheng、Yalan Xing

  DOI：10.1021/acs.joc.3c00617

  日期：2023.7.7

  Stable benzylic carbocations were generated via mesolytic cleavage of TEMPO-derived alkoxyamines, which was realized by electrochemical oxidation. This strategy provided an efficient and unique approach to access stabilized carbocations under mild conditions. Esterification of benzylic carbocations using carboxylic acid produced a variety of benzylic esters with a broad substrate scope and excellent

  稳定的苄基碳阳离子是通过 TEMPO 衍生的烷氧基胺的介观裂解产生的，这是通过电化学氧化实现的。该策略提供了一种在温和条件下获得稳定碳正离子的有效且独特的方法。使用羧酸酯化苄基碳正离子可产生多种具有广泛底物范围和优异官能团相容性的苄酯。
• Direct Radical Polymerization of 4-Styryldiphenylphosphine:  Preparation of Cross-Linked and Non-Cross-Linked Triphenylphosphine-Containing Polystyrene Polymers
  作者：Matthew Kwok Wai Choi、Helen Song He、Patrick H. Toy

  DOI：10.1021/jo035226+

  日期：2003.12.1

  We report herein a simple synthesis of 4-styryl-diphenylphosphine and the radical copolymerization of it with styrene, both with and without a cross-linker, to directly form cross-linked and non-cross-linked polystyrene supported triphenylphosphine in which the level of phosphine incorporation can be easily and accurately controlled. The utility of these polymers is demonstrated by their use in Mitsunobu and alcohol bromination reactions.