4-(苯氧基甲基)苯硼酸频哪酯 | 946409-21-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 4-(苯氧基甲基)苯硼酸频哪酯
• 英文名称: 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyloxybenzene
• 英文别名: 4,4,5,5-Tetramethyl-2-(4-phenoxymethyl-phenyl)-[1,3,2]dioxaborolane；4,4,5,5-tetramethyl-2-[4-(phenoxymethyl)phenyl]-1,3,2-dioxaborolane
• CAS: 946409-21-8
• 化学式: C₁₉H₂₃BO₃
• 分子量: 310.201
• InChiKey: YLEMWKPHWXIWOL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.56
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 危险性防范说明：
  P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313
• 危险性描述：
  H315,H319

反应信息

• 作为反应物：
  描述：

  4-(苯氧基甲基)苯硼酸频哪酯 、 对溴苯甲醛 在 四丁基溴化铵 、 palladium diacetate 、 sodium carbonate 作用下， 以 水 为溶剂， 反应 0.17h， 以38%的产率得到4'-(phenoxymethyl)-[1,1'-biphenyl]-4-carbaldehyde
  参考文献：
  名称：

  Microwave-Mediated Synthesis of an Arylboronate Library

  摘要：

  A series of arylboronates has been synthesized from the reaction of 2-(2-, (3-, or (4-(bromomethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 1{1-3) respectively with a range of N-, S-, and O-nucleophiles, using microwave-mediated chemistry. For the synthesis of N- and S-substituted boronates, a supported base, PS-NMM, was employed, and many reactions were complete within 15 min. With O-nucleophiles, a mixture of tetrabutylammonium bromide, potassium carbonate, and sodium hydroxide was employed. The resulting aminomethyl, mercaptomethyl, or alkoxy-/phenoxymethyl-arylboronates were subjected to microwave-mediated Suzuki Miyaura coupling reactions to afford a range of biaryls in moderate to good yields. The X-ray structures of five boronates were determined.

  DOI：

  10.1021/co100011g
• 作为产物：
  描述：

  4-溴甲基苯硼酸频哪醇酯 、 苯酚 在 四丁基溴化铵 、 potassium carbonate 、 sodium hydroxide 作用下， 反应 0.08h， 以100%的产率得到4-(苯氧基甲基)苯硼酸频哪酯
  参考文献：
  名称：

  Microwave-Mediated Synthesis of an Arylboronate Library

  摘要：

  A series of arylboronates has been synthesized from the reaction of 2-(2-, (3-, or (4-(bromomethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 1{1-3) respectively with a range of N-, S-, and O-nucleophiles, using microwave-mediated chemistry. For the synthesis of N- and S-substituted boronates, a supported base, PS-NMM, was employed, and many reactions were complete within 15 min. With O-nucleophiles, a mixture of tetrabutylammonium bromide, potassium carbonate, and sodium hydroxide was employed. The resulting aminomethyl, mercaptomethyl, or alkoxy-/phenoxymethyl-arylboronates were subjected to microwave-mediated Suzuki Miyaura coupling reactions to afford a range of biaryls in moderate to good yields. The X-ray structures of five boronates were determined.

  DOI：

  10.1021/co100011g

文献信息

• Metal-Free and Redox-Neutral Conversion of Organotrifluoroborates into Radicals Enabled by Visible Light
  作者：Wenbo Liu、Peng Liu、Leiyang Lv、Chao-Jun Li

  DOI：10.1002/anie.201807181

  日期：2018.10.8

  through an SH2 process. This strategy is enabled by using water as the solvent, visible light as the energy input, and diacetyl as the promoter in the absence of any metal catalyst or redox reagent, thereby eliminating metal waste. To demonstrate its synthetic utility, an efficient acetylation to prepare valuable aryl (alkyl) methyl ketones is described and applications to construct C−C, C−I, C−Br

  将有机硼化合物转化为相应的基团在有机化学中具有广泛的合成应用。为了实现这些转化，需要采用化学计量的各种强氧化剂如Mn（OAc）3，AgNO 3 / K 2 S 2 O 8和Cu（OAc）2，并通过单电子转移机理进行。本文确立了一种独特的策略，可通过S H从有机三氟硼酸盐生成芳基和烷基2过程。在没有任何金属催化剂或氧化还原试剂的情况下，通过使用水作为溶剂，使用可见光作为能量输入，使用二乙酰作为促进剂来启用此策略，从而消除了金属浪费。为了证明其合成用途，描述了一种有效的乙酰化反应以制备有价值的芳基（烷基）甲基酮，并且构造C-C，C-I，C-Br和C-S键的应用也是可行的。实验证据表明，三联体二乙酰是该过程的关键中间体。