4-bromo-2-(2-methylphenyl)pyridine | 1142194-13-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 4-bromo-2-(2-methylphenyl)pyridine
• 英文别名: 4-Bromo-2-(2-tolyl)pyridine
• CAS: 1142194-13-5
• 化学式: C₁₂H₁₀BrN
• 分子量: 248.122
• InChiKey: YEFCJSMKAZPFOH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2,4-二溴吡啶 、 2-甲基苯硼酸频那醇酯 在 palladium diacetate 、 三苯基膦 、 potassium hydroxide 作用下， 以 乙腈 为溶剂， 反应 24.0h， 以95%的产率得到4-bromo-2-(2-methylphenyl)pyridine
  参考文献：
  名称：

  Palladium-catalyzed highly regioselective 2-arylation of 2,x-dibromopyridines and its application in the efficient synthesis of a 17β-HSD1 inhibitor

  摘要：

  2,3- and 2,5-Dibromopyridines reacted with arylboronic acids, catalyzed by Pd(OAc)(2)/PPh3 in the presence of K2CO3 in CH3CN/MeOH (2:1) at 50 degrees C for 24 h, to afford 2-aiylpyridines in good to high yields, while 2,4-dibromopyridine reacted with arylboronic acid pinacol esters, catalyzed by Pd(OAc)(2)/PPh3 in the presence of KOH in CH3CN at 70 degrees C for 24 h, to afford 2-arylpyridines in good to high yields. To expand this methodology, a 170-HSD1 inhibitor was synthesized in good yield. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.10.065

文献信息

• Palladium-catalyzed highly regioselective 2-arylation of 2,x-dibromopyridines and its application in the efficient synthesis of a 17β-HSD1 inhibitor
  作者：Qizhong Zhou、Bin Zhang、Liangjun Su、Tiansheng Jiang、Rener Chen、Tieqi Du、Yuyuan Ye、Jianfen Shen、Guoliang Dai、Deman Han、Huajiang Jiang

  DOI：10.1016/j.tet.2013.10.065

  日期：2013.12

  2,3- and 2,5-Dibromopyridines reacted with arylboronic acids, catalyzed by Pd(OAc)(2)/PPh3 in the presence of K2CO3 in CH3CN/MeOH (2:1) at 50 degrees C for 24 h, to afford 2-aiylpyridines in good to high yields, while 2,4-dibromopyridine reacted with arylboronic acid pinacol esters, catalyzed by Pd(OAc)(2)/PPh3 in the presence of KOH in CH3CN at 70 degrees C for 24 h, to afford 2-arylpyridines in good to high yields. To expand this methodology, a 170-HSD1 inhibitor was synthesized in good yield. (C) 2013 Elsevier Ltd. All rights reserved.