(R)-4-hydroxy-4-[4-(trifluoromethyl)phenyl]butan-2-one

• 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: (R)-4-hydroxy-4-[4-(trifluoromethyl)phenyl]butan-2-one
• 英文别名: 4-hydroxy-4-(4-(trifluoromethyl)phenyl)butan-2-one；(R)-4-(4-(trifluoromethyl)phenyl)-4-hydroxybutan-2-one；(4R)-4-hydroxy-4-(4'-(trifluoromethyl)phenyl)butan-2-one；(4R)-4-hydroxy-4-[4-(trifluoromethyl)phenyl]butan-2-one
• 化学式: C₁₁H₁₁F₃O₂
• 分子量: 232.202
• InChiKey: KTDAIWSFSAWDBT-SNVBAGLBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  对三氟甲基苯甲醛 、 丙酮 在 magnetic nanoparticle-1 supported H₃PW₁₂O₄₀ and (S)-pyrrolidin-2-ylmethylazepane 作用下， 反应 30.17h， 以81%的产率得到(R)-4-hydroxy-4-[4-(trifluoromethyl)phenyl]butan-2-one
  参考文献：
  名称：

  Magnetic nanoparticle supported polyoxometalates (POMs) via non-covalent interaction: reusable acid catalysts and catalyst supports for chiral amines

  摘要：

  磁性聚氧甲基丙烯酸盐（POMs）是通过功能化磁性纳米粒子和聚氧甲基丙烯酸盐之间的简单超声处理获得的。这种材料不仅可用作高活性酸催化剂，还可用作手性胺的催化剂载体。

  DOI：

  10.1039/c1cc14178c

文献信息

• <i>N</i>-Primary-Amine-Terminal β-Turn Tetrapeptides as Organocatalysts for Highly Enantioselective Aldol Reaction
  作者：Feng-Chun Wu、Chao-Shan Da、Zhi-Xue Du、Qi-Peng Guo、Wei-Ping Li、Lei Yi、Ya-Ning Jia、Xiao Ma

  DOI：10.1021/jo9005766

  日期：2009.7.3

  solution. They were first applied to catalyze aldol reactions, and were found to be effective catalysts for the transformations. The tetrapeptide Val-d-Pro-Gly-Leu-OH (1g) was the optimal organocatalyst. It was shown that the intensive β-turn conformation, indicated by CD and NOESY spectra, contributed to the (R)-aldol and high enantioselectivity of the reaction of acetone in MeOH, whereas the sharply varied

  设计并合成了四肽，该四肽包含一个终止的伯胺和构象受限的d -Pro-Gly或d -Pro-Aib（2-氨基异丁酸）链段作为强β-转核元素，并通过N-模块二肽与溶液中的C模块二肽。它们首先被用于催化羟醛反应，并被发现是有效的转化催化剂。四肽Val- d -Pro-Gly-Leu-OH（1g）是最佳的有机催化剂。结果表明，在密集的β转角构象，通过CD和NOESY光谱表明，促成了（ř）-丙酮中的丙酮反应具有较高的对映选择性，而急剧变化的构象应有助于1,2-二氯乙烷（DCE）中反应的低对映选择性和（S）产物。羟基丙酮反应中的不对称诱导不受溶剂的影响，在MeCN中添加1克添加剂（S）-BINOL可达到主要的反产物。
• Rational Combination of Two Privileged Chiral Backbones: Highly Efficient Organocatalysts for Asymmetric Direct Aldol Reactions between Aromatic Aldehydes and Acylic Ketones
  作者：Jia-Rong Chen、Xiao-Lei An、Xiao-Yu Zhu、Xu-Fan Wang、Wen-Jing Xiao

  DOI：10.1021/jo800910s

  日期：2008.8.1

  A new class of organocatalysts has been designed by rational combination of proline with cinchona alkaloids. The chiral amine 3a, prepared from l-proline and cinchonidine, has been found to be an efficient catalyst for the direct aldol reactions of acetone or 2-butanone with a wide range of aldehydes (up to 98% ee). The cinchonidine backbone is essential to the reaction efficiency and enantioselectivity

  通过脯氨酸与金鸡纳生物碱的合理结合，已经设计出了一类新的有机催化剂。已经发现由1-脯氨酸和辛可尼定制备的手性胺3a是丙酮或2-丁酮与多种醛（至多98％ee）的直接羟醛直接反应的有效催化剂。辛可尼定骨架对反应效率和对映选择性是必不可少的。
• A Simple Primary−Tertiary Diamine−Brønsted Acid Catalyst for Asymmetric Direct Aldol Reactions of Linear Aliphatic Ketones
  作者：Sanzhong Luo、Hui Xu、Jiuyuan Li、Long Zhang、Jin-Pei Cheng

  DOI：10.1021/ja069372j

  日期：2007.3.1

  regio- and diastereoselectivity and enantioselectivity under ambient temperature. Significantly, the reactions accommodate the synthetically important but challenging substrates, such as linear aliphatic ketones, with high regioselectivity and unprecedented syn diastereoselectivity. These results are in sharp contrast with the secondary amine mediated similar reactions wherein anti diastereoselectivity

  与已充分探索的带有仲胺的烯胺催化相比，开发高效的基于烯胺的伯胺催化剂直到最近仍然是一个难以捉摸的目标。我们在本文中提出了一种简单的手性伯-叔二胺 1d 与 TfOH 结合用作有效的基于烯胺的伯胺催化剂。1d-TfOH催化体系可以有效催化不对称直接醛醇反应，底物范围广，在环境温度下具有高区域选择性和非对映选择性以及对映选择性。值得注意的是，这些反应适应了合成上重要但具有挑战性的底物，例如线性脂肪族酮，具有高区域选择性和前所未有的顺式非对映选择性。
• Bisprolinediamides with the Binaphthyl Backbone as Organocatalysts for the Direct Asymmetric Aldol Reaction
  作者：Dorota Gryko、Bartomiej Kowalczyk、Łukasz Zawadzki

  DOI：10.1055/s-2006-939701

  日期：——

  diamines including l,l'-binaphthyl-2,2'-diamine, were prepared in good yields. They were evaluated as catalysts for the direct asymmetric aldol reaction. The presence of the binaphthyl and proline moieties in one molecule has beneficial effects on the stereochemical outcome of the reaction of acetone with a model aldehyde. Furthermore, it was shown that dioxane as the solvent significantly improved both

  以良好的收率制备了一系列衍生自各种芳族二胺（包括 l,l'-binaphthyl-2,2'-diamine）的 L-脯氨酸酰胺。它们被评估为直接不对称醛醇反应的催化剂。一个分子中联萘和脯氨酸部分的存在对丙酮与模型醛反应的立体化学结果具有有益影响。此外，表明二恶烷作为溶剂显着提高了产率和对映选择性，分别达到 89% 和 86%。
• Unexpected Beneficial Effect of ortho-Substituents on the (S)-Proline-Catalyzed Asymmetric Aldol Reaction of Acetone with Aromatic Aldehydes
  作者：Benjamin List、Alberto Martínez、Manuel van Gemmeren

  DOI：10.1055/s-0033-1340920

  日期：——

  An intriguing effect of electronegative 2,6-substituents on the stereochemical outcome of (S) -proline-catalyzed aldol reactions between benzaldehyde derivatives and acetone is reported. Remarkably high enantioselectivities can be achieved with such substrates.

  据报道，带负电的 2,6-取代基对 (S)-脯氨酸催化的苯甲醛衍生物和丙酮之间的羟醛反应的立体化学结果产生了有趣的影响。使用此类底物可以实现非常高的对映选择性。