2,7-dibromo-9H-fluoren-9-yl 2-hydroxyl-1-indanone-2-carboxylate | 1261666-24-3

• 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: 2,7-dibromo-9H-fluoren-9-yl 2-hydroxyl-1-indanone-2-carboxylate
• 英文别名: (2,7-dibromo-9H-fluoren-9-yl) (2S)-2-hydroxy-3-oxo-1H-indene-2-carboxylate
• CAS: 1261666-24-3
• 化学式: C₂₃H₁₄Br₂O₄
• 分子量: 514.17
• InChiKey: GVGKCVLOSPELJQ-QHCPKHFHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  29
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2,7-dibromo-9H-fluoren-9-yl 1-indanone-2-carboxylate 在 zirconium(IV) acetylacetonate 、 过氧化氢异丙苯 、 2,4-di-tert-butyl-6-((((1S,2S)-2-((2-hydroxy-3,5-di(naphthalen-1-yl)benzyl)amino)cyclohexyl)amino)methyl)phenol 作用下， 以 Petroleum ether 为溶剂， 反应 2.0h， 以83%的产率得到2,7-dibromo-9H-fluoren-9-yl 2-hydroxyl-1-indanone-2-carboxylate
  参考文献：
  名称：

  改进的Salen-锆（IV）催化β-酮基酯的氧化对映选择性α-羟基化

  摘要：

  以手性（1 S，2 S）-环己二胺骨架-沙仑-锆（IV）为催化剂，实现了使用氢过氧化枯烯（CHP）作为氧化剂的β-酮酯的高对映选择性α-羟基化反应。以优异的产率（高达99％）和对映选择性（高达98％ee）获得了各种相应的手性α-羟基β-酮酯。锆催化的β-酮酸酯的对映选择性α-羟基化反应是可扩展的，锆催化剂可回收利用。该反应可以以克为单位进行，并且以95％的收率和99％的ee获得了相应的手性产物。

  DOI：

  10.1021/acs.orglett.6b03554

文献信息

• Asymmetric Direct α-Hydroxylation of β-Oxo Esters by Phase-Transfer Catalysis Using Chiral Quaternary Ammonium Salts
  作者：Mingming Lian、Zhi Li、Jian Du、Qingwei Meng、Zhanxian Gao

  DOI：10.1002/ejoc.201001175

  日期：2010.12

  The first enantioselective direct α-hydroxylation of β-oxo esters was developed by using phase-transfer catalysis. 1-Indanone-derived 1-adamantyl (1-Ad) β-oxo esters, in the presence of commercially available cumyl hydroperoxide and a cinchonine-based ammonium salt, resulted in the corresponding products with 69–91 % yield and 65–74 % ee. The reaction had also been successfully scaled-up to a gram

  β-氧代酯的第一个对映选择性直接α-羟基化是通过使用相转移催化开发的。1-茚满酮衍生的 1-金刚烷基 (1-Ad) β-氧代酯，在市售的过氧化氢枯基和基于辛可宁的铵盐的存在下，产生了相应的产物，产率 69-91%，产率 65-74% ee。该反应也已成功地放大到克量，并且在不损失对映选择性的情况下获得了类似的产率。
• Asymmetric α-Hydroxylation of β-Indanone Esters and β-Indanone Amides Catalyzed by C-2′ Substituted <i>Cinchona</i> Alkaloid Derivatives
  作者：Yakun Wang、Hang Yin、Hai Qing、Jingnan Zhao、Yufeng Wu、Qingwei Meng

  DOI：10.1002/adsc.201500911

  日期：2016.3.3

  asymmetric α‐hydroxylation of β‐indanone esters and β‐indanone amides using peroxide as the oxidant was realized with a new C‐2′ substituted Cinchona alkaloid derivatives. The two enantiomers of α‐hydroxy‐β‐indanone esters could be obtained by simply changing the oxidant. This protocol allows a convenient access to the corresponding α‐hydroxy‐β‐indanone esters and α‐hydroxy‐β‐indanone amides with up to

  通过使用新的C-2'取代的金鸡纳生物碱衍生物，实现了使用过氧化物作为氧化剂的β-茚满酮酯和β-茚满酮酰胺的高度催化不对称α-羟基化反应。只需改变氧化剂即可获得α-羟基-β-茚满酮酯的两种对映体。该方案可方便地获得相应的α-羟基-β-茚满酮酯和α-羟基-β-茚满酮酰胺，产率高达99％，ee高达98％。
• Methylhydrazine-induced enantioselective α-hydroxylation of β-keto esters with molecular oxygen catalyzed by hydroquinine
  作者：Yakun Wang、Ting Xiong、Qingwei Meng

  DOI：10.1016/j.tet.2014.11.029

  日期：2015.1

  Methylhydrazine-induced α-hydroxylation of β-dicarbonyl compounds was achieved using O2 as the oxygen source. This reaction provides an efficient approach to enantioenriched ɑ-hydroxy β-dicarbonyl compounds, which are valuable substances and widely used in the chemical and pharmaceutical industry. A wide variety of β-keto esters could undergo this oxidation to give the corresponding products in excellent

  使用O 2作为氧源，实现了甲基肼诱导的β-二羰基化合物的α-羟基化。该反应提供了一种有效的方法来对映体富集ɑ羟基β二羰基化合物，它们是有价值的物质和广泛用于化学和制药工业。各种各样的β-酮酯都可以进行这种氧化，从而以高收率（高达95％）和良好的对映选择性（高达ee的85％）得到相应的产物。温和的反应条件和使用分子氧作为氧化剂使该方案对环境非常友好且实用。
• Development of C-6′-modified quinine-derived phase-transfer catalysts and their application in the enantioselective α-hydroxylation of β-dicarbonyl compounds
  作者：Hai Qing、Yakun Wang、Zehao Zheng、Shuai Chen、Qingwei Meng

  DOI：10.1016/j.tetasy.2016.07.006

  日期：2016.10

  We have developed C-6'-modified quinine quaternary ammonium salts as phase transfer catalysts for alpha-hydroxylation of beta-dicarbonyl compounds. The quinine quaternary ammonium salts, which was modified at C-6' and the N atom, had good activity for alpha-hydroxylation of B-dicarbonyl compounds. By using 5 mol % of 6-hydroxyl-N-(4'-fluoro-2'-trifluoromethyl)quinine quaternary ammonium salt as the organocatalyst, cumene hydroperoxide as the oxidant, toluene as the solvent, and 50% K2HPO4 as the aqueous alkali at room, temperature, the yield and enantioselectivity of the alpha-hydroxylation of beta-keto esters were 95% and 88%, respectively. This catalytic system was also applicable for beta-keto amides (92% yield and 76% ee). (C) 2016 Elsevier Ltd. All rights reserved.