N,N,N-tributylbutan-1-aminium trifluoro(propa-1,2-dien-1-yl)borate | 1275575-88-6

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: N,N,N-tributylbutan-1-aminium trifluoro(propa-1,2-dien-1-yl)borate
• 英文别名: tetrabutylammonium allenyltrifluoroborate
• CAS: 1275575-88-6
• 化学式: C₃H₃BF₃*C₁₆H₃₆N
• 分子量: 349.332
• InChiKey: HMMNEPJKPZADGY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.72
• 重原子数：
  24
• 可旋转键数：
  12
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.84
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N,N,N-tributylbutan-1-aminium trifluoro(propa-1,2-dien-1-yl)borate 以 二氯甲烷 、 甲苯 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  Enantio- and Diastereoselective Synthesis of (E)-1,5-syn-Diols: Application to the Synthesis of the C(23)−C(40) Fragment of Tetrafibricin

  摘要：

  A highly stereoselective synthesis of (E)-1,5-syn-diols 6 Is described. The kinetically controlled hydroboration of allenyltrifluoroborate 8 with Soderquist borane 2 provides the (Z)-allylic trifluoroborate 9, which undergoes sequential allylboration with two different aldehydes to provide (E)-1,5-syn-diols 6 In 72-98% yields with > 95% ee and > 20:1 dr. Application of this method to the synthesis of the tetraflbricin C(23)-C(40) fragment 19 is described.

  DOI：

  10.1021/ol2003836
• 作为产物：
  描述：

  potassium trifluoro(propa-1,2-dien-1-yl)borate 、 四丁基氢氧化铵 以 二氯甲烷 、 水 为溶剂， 反应 0.5h， 以83%的产率得到N,N,N-tributylbutan-1-aminium trifluoro(propa-1,2-dien-1-yl)borate
  参考文献：
  名称：

  Enantio- and Diastereoselective Synthesis of (E)-1,5-syn-Diols: Application to the Synthesis of the C(23)−C(40) Fragment of Tetrafibricin

  摘要：

  A highly stereoselective synthesis of (E)-1,5-syn-diols 6 Is described. The kinetically controlled hydroboration of allenyltrifluoroborate 8 with Soderquist borane 2 provides the (Z)-allylic trifluoroborate 9, which undergoes sequential allylboration with two different aldehydes to provide (E)-1,5-syn-diols 6 In 72-98% yields with > 95% ee and > 20:1 dr. Application of this method to the synthesis of the tetraflbricin C(23)-C(40) fragment 19 is described.

  DOI：

  10.1021/ol2003836

文献信息

• Development of a double allylboration reagent targeting 1,5-syn-(E)-diols: application to the synthesis of the C(23)–C(40) fragment of tetrafibricin
  作者：Philippe Nuhant、Jeremy Kister、Ricardo Lira、Achim Sorg、William R. Roush

  DOI：10.1016/j.tet.2011.06.008

  日期：2011.9

  Interest in the synthesis of the C(23) C(40) fragment 2 of tetrafibricin prompted us to develop a new method for the synthesis of 1,5-syn-(E)-diols. Toward this end, the kinetically controlled hydroboration of allenes 6, 33, ent-39, 42, and 45 with the Soderquist borane 25R were studied. Tetrabutylammonium allenyltrifluoroborate 45 gave superior results and was utilized in a double allylboration sequence with two different aldehydes to provide the targeted 1,5-syn-(E)-diols in generally high yields (72-98%), and with high enantioselectivity (>95% ee), diastereoselectivity (dr >20:1), and (E)/(Z) selectivity (>20:1). This new method was applied to the synthesis of the C(23) C(40) fragment 2 of tetrafibricin. (C) 2011 Elsevier Ltd. All rights reserved.
• Enantio- and Diastereoselective Synthesis of (<i>E</i>)-1,5-<i>syn</i>-Diols: Application to the Synthesis of the C(23)−C(40) Fragment of Tetrafibricin
  作者：Jeremy Kister、Philippe Nuhant、Ricardo Lira、Achim Sorg、William R. Roush

  DOI：10.1021/ol2003836

  日期：2011.4.1

  A highly stereoselective synthesis of (E)-1,5-syn-diols 6 Is described. The kinetically controlled hydroboration of allenyltrifluoroborate 8 with Soderquist borane 2 provides the (Z)-allylic trifluoroborate 9, which undergoes sequential allylboration with two different aldehydes to provide (E)-1,5-syn-diols 6 In 72-98% yields with > 95% ee and > 20:1 dr. Application of this method to the synthesis of the tetraflbricin C(23)-C(40) fragment 19 is described.