2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-cyanoindole | 919119-73-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-cyanoindole
• 英文别名: 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)-1H-indole-4-carbonitrile
• CAS: 919119-73-6
• 化学式: C₂₁H₂₈B₂N₂O₄
• 分子量: 394.086
• InChiKey: HXIZCDYGRWHSRM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.64
• 重原子数：
  29
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  76.5
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-cyanoindole 在 甲醇 、 (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以85%的产率得到7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-4-carbonitrile
  参考文献：
  名称：

  Harnessing C–H Borylation/Deborylation for Selective Deuteration, Synthesis of Boronate Esters, and Late Stage Functionalization

  摘要：

  Ir-catalyzed deborylation can be used to selectively deuterate aromatic and heteroaromatic substrates. Combined with the selectivities of Ir-catalyzed C-H borylations, uniquely labeled compounds can be prepared. In addition, diborylation/deborylation reactions provide monoborylated regioisomers that complement those prepared by C-H borylation. Comparisons between Ir-catalyzed deborylations and Pd-catalyzed deborylations of diborylated indoles described by Movassaghi are made. The Ir-catalyzed process is more effective for deborylating aromatics and is generally more effective in the monodeborylation of diborylated thiophenes. These processes can be applied to complex molecules such as dopidogrel.

  DOI：

  10.1021/acs.joc.5b01588
• 作为产物：
  描述：

  4-氰基吲哚 、 频那醇硼烷 在 (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 、 d^tbpy 作用下， 以 正己烷 为溶剂， 反应 10.0h， 以92%的产率得到2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-cyanoindole
  参考文献：
  名称：

  7 位 2-取代吲哚的 Ir 催化功能化：氮定向芳香硼化

  摘要：

  2-取代吲哚的 Ir 催化硼酸化选择性地以良好的产率产生 7-硼酸化产物。2-取代吲哚的先前功能化所需的N-保护是不必要的。

  DOI：

  10.1021/ja0631652

文献信息

• Harnessing C–H Borylation/Deborylation for Selective Deuteration, Synthesis of Boronate Esters, and Late Stage Functionalization
  作者：Venkata A Kallepalli、Kristin A. Gore、Feng Shi、Luis Sanchez、Ghayoor A. Chotana、Susanne L. Miller、Robert E. Maleczka、Milton R. Smith

  DOI：10.1021/acs.joc.5b01588

  日期：2015.8.21

  Ir-catalyzed deborylation can be used to selectively deuterate aromatic and heteroaromatic substrates. Combined with the selectivities of Ir-catalyzed C-H borylations, uniquely labeled compounds can be prepared. In addition, diborylation/deborylation reactions provide monoborylated regioisomers that complement those prepared by C-H borylation. Comparisons between Ir-catalyzed deborylations and Pd-catalyzed deborylations of diborylated indoles described by Movassaghi are made. The Ir-catalyzed process is more effective for deborylating aromatics and is generally more effective in the monodeborylation of diborylated thiophenes. These processes can be applied to complex molecules such as dopidogrel.
• Ir-Catalyzed Functionalization of 2-Substituted Indoles at the 7-Position:  Nitrogen-Directed Aromatic Borylation
  作者：Sulagna Paul、Ghayoor A. Chotana、Daniel Holmes、Rebecca C. Reichle、Robert E. Maleczka,、Milton R. Smith

  DOI：10.1021/ja0631652

  日期：2006.12.1

  Ir-catalyzed borylation of 2-substituted indoles selectively yields 7-borylated products in good yields. N-Protection, required for previous functionalizations of 2-substituted indoles, is unnecessary.

  2-取代吲哚的 Ir 催化硼酸化选择性地以良好的产率产生 7-硼酸化产物。2-取代吲哚的先前功能化所需的N-保护是不必要的。