(R)-3-(4-bromophenyl)butan-2-one | 1016651-69-6

• 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)-3-(4-bromophenyl)butan-2-one
• 英文别名: (R)-3-(4-bromophenyl)buta-2-one；(R)-3-(p-bromophenyl)butan-2-one；(3R)-3-(4-bromophenyl)butan-2-one
• CAS: 1016651-69-6
• 化学式: C₁₀H₁₁BrO
• 分子量: 227.101
• InChiKey: LJVNHGDHWDQBTR-ZETCQYMHSA-N

物化性质

• 沸点：
  276.9±15.0 °C(Predicted)
• 密度：
  1.341±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4,4,5,5-tetramethyl-2-(3-(4-bromophenyl)but-1-en-2-yl)-1,3,2-dioxaborolane 在 sodium perborate tetrahydrate 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以84%的产率得到
  参考文献：
  名称：

  双取代艾伦烯的催化对映选择性原硼化反应。获得高对映体纯度的烯基硼化合物

  摘要：

  在 1.0–5.0 mol% 的手性 NHC-Cu 配合物、B 2 (pin) 2和t- BuOH存在下，原硼基加成到 1,1-二取代的丙二烯上，得到烯基-B(pin) 产物高达 98% 的产率、>98:2 的位点选择性和 98:2 er。富含对映异构体的烯基硼产物可以转化为其他难以获得的烯基溴化物、甲基酮或羧酸。此外，相应的硼酸可用于高度立体选择性的 NHC-Cu 催化的烯丙基取代反应。

  DOI：

  10.1021/ol5022417

文献信息

• Ionic liquids for enhancing the enantioselectivity of isolated BVMO-catalysed oxidations
  作者：Cristina Rodríguez、Gonzalo de Gonzalo、Marco W. Fraaije、Vicente Gotor

  DOI：10.1039/c0gc00560f

  日期：——

  The present study describes the first-time usage of an isolated thermostable Baeyer–Villiger monooxygenase (phenylacetone monooxygenase, PAMO) in the presence of ionic liquids. The stability, activity and selectivity of PAMO as an oxidative enzyme in the presence of different ionic liquids were studied. This revealed that the addition of some specific ionic liquids, such Ammoeng™ 102 and [bmim]MeSO4, can significantly enhance the E-value in the oxidation of racemic benzylketones. Moreover, the use of ionic liquids increases the optimal substrate concentration for performing Baeyer–Villiger oxidation, thereby extending the biocatalytic repertoire of PAMO for synthetic applications.

  本研究首次报道了在离子液体存在下使用分离的耐热贝耶尔-维利格单氧合酶（苯丙酮单氧合酶，PAMO）的情况。研究了不同离子液体存在下，PAMO作为氧化酶的稳定性、活性和选择性。结果显示，添加某些特定离子液体，如AmMOeng™ 102和[bmim]MeSO4，可以显著提高消旋苯甲酮氧化反应的E值。此外，离子液体的使用提高了进行贝耶尔-维利格氧化反应的最佳底物浓度，从而扩大了PAMO在合成应用中的生物催化范围。
• Selective Baeyer–Villiger oxidation of racemic ketones in aqueous–organic media catalyzed by phenylacetone monooxygenase
  作者：Cristina Rodríguez、Gonzalo de Gonzalo、Daniel E. Torres Pazmiño、Marco W. Fraaije、Vicente Gotor

  DOI：10.1016/j.tetasy.2007.12.008

  日期：2008.2

  enantioselective kinetic resolution of a set of racemic substituted 3-phenylbutan-2-ones employing phenylacetone monooxygenase (PAMO) in non-conventional media was performed. The studies have revealed the effects of a range of solvents on the biocatalytic properties of the biocatalyst. Also, the enzymatic oxidation of α-acetylphenylacetonitrile was performed using organic cosolvents. This has resulted in a dynamic

  使用苯丙酮单加氧酶（PAMO）在非常规介质中进行了一组外消旋取代的3-苯基丁烷-2-酮的对映选择性动力学拆分。研究已经揭示了多种溶剂对生物催化剂的生物催化性能的影响。另外，使用有机助溶剂进行α-乙酰基苯基乙腈的酶促氧化。这导致该氰酮的动态动力学拆分，产生对映纯（R）-2-乙酰氧基苯基乙腈，其产率取决于所采用的反应条件。
• Baeyer–Villiger monooxygenase-catalyzed kinetic resolution of racemic α-alkyl benzyl ketones: enzymatic synthesis of α-alkyl benzylketones and α-alkyl benzylesters
  作者：Cristina Rodríguez、Gonzalo de Gonzalo、Daniel E. Torres Pazmiño、Marco W. Fraaije、Vicente Gotor

  DOI：10.1016/j.tetasy.2009.03.018

  日期：2009.6

  The application of three BVMOs for the enantioselective oxidation of 3-phenylbutan-2-ones with different substituents in the aromatic moiety is described. By choosing the appropriate biocatalyst and substrate combination, chiral ketones and esters can be obtained with excellent enantiopurities. This methodology could also be applied to the resolution of racemic alpha-alkyl benzylketones with longer alkyl chains as well as with two substituted alpha-substituted benzylacetones. A kinetic analysis revealed that the BVMOs studied effectively convert all tested compounds showing that the enzymes are tolerant towards the substrate structure while being highly enantioselective. These properties render BVMOs as valuable biocatalysts for the preparation of compounds with high interest in organic synthesis. (C) 2009 Elsevier Ltd. All rights reserved.