2-phenylpentan-3-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: 2-phenylpentan-3-one
• 英文别名: 2-phenyl-3-pentanone
• 化学式: C₁₁H₁₄O
• 分子量: 162.232
• InChiKey: UYXZZTGJCIWPJY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  12
• 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：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-phenylpentan-3-one 在 6-deoxy-6-phosphono-β-D-glucopyranose 、 还原型辅酶II(NADPH)四钠盐 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 生成 (S)-1-phenylethyl propionate
  参考文献：
  名称：

  Immobilized redox enzymatic catalysts: Baeyer–Villiger monooxygenases supported on polyphosphazenes

  摘要：

  A novel method has been employed for the selective covalent co-immobilization of a Baeyer-Villiger monooxygenase (phenylacetone monooxygenase from Thermobifida fusca) and a NADPH recycling enzyme (glucose-6-phosphate dehydrogenase) on the same polyphosphazene carrier for the first time starting from {NP[O2C12H8-x(NH2)(x)]}(n) (x ranging from 0.5 to 2) using glutaraldehyde as connector. In all cases the preparation was active and it was found that the optimum proportion of amino groups in the starting polyphosphazene was 0.5 per monomer. The immobilized biocatalysts showed similar selectivity when compared with the isolated monooxygenase, demonstrating the potential of this novel type of immobilizing material, although their recyclability must still be improved. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcatb.2011.10.002
• 作为产物：
  描述：

  2-苯基丙醛 在 chromium trioxide pyridine 、 magnesium 作用下， 以 二氯甲烷 为溶剂， 反应 6.25h， 生成 2-phenylpentan-3-one
  参考文献：
  名称：

  1-苯基乙基烷基和苯基酮与有机金属试剂缩合反应中的立体选择性

  摘要：

  一系列酮，PhCHMeCOR（R =甲基，乙基，Pr中的缩合反应的立体化学结果我，卜吨作为报道溶剂在醚中，Ph），与各种有机镁和有机锂衍生物。根据两个过渡态之间的竞争来说明结果，根据R的性质，试剂亲核性和溶剂的极性，可以采用Karabatsos型或Felkin型构象。该反应的极性和空间分析允许设计非对映异构体α-苯基链烷醇的高度立体选择性的合成。

  DOI：

  10.1039/p29830001645

文献信息

• Intermolecular Markovnikov-Selective Hydroacylation of Olefins Catalyzed by a Cationic Ruthenium–Hydride Complex
  作者：Junghwa Kim、Chae S. Yi

  DOI：10.1021/acscatal.6b00856

  日期：2016.5.6

  The cationic Ru–H complex was found to be an effective catalyst for the intermolecular hydroacylation of aryl-substituted olefins with aldehydes to form branched ketone products. The preliminary kinetic and spectroscopic studies elucidated a ruthenium-acyl complex as the key intermediate species. The catalytic method directly afforded branched ketone products in a highly regioselective manner while

  阳离子Ru-H络合物被发现是芳基取代烯烃与醛分子间加氢酰化形成支化酮产物的有效催化剂。初步的动力学和光谱研究阐明钌-酰基络合物是关键的中间体物种。该催化方法以高度区域选择性的方式直接提供支化酮产物，同时耐受许多杂原子官能团。
• CC Coupling of Ketones with Methanol Catalyzed by a N-Heterocyclic Carbene-Phosphine Iridium Complex
  作者：Xu Quan、Sutthichat Kerdphon、Pher G. Andersson

  DOI：10.1002/chem.201405990

  日期：2015.2.23

  carbene–phosphine iridium complex system was found to be a very efficient catalyst for the methylation of ketone via a hydrogen transfer reaction. Mild conditions together with low catalyst loading (1 mol %) were used for a tandem process which involves the dehydrogenation of methanol, CC bond formation with a ketone, and hydrogenation of the new generated double bond by iridium hydride to give the

  N-杂环卡宾-膦铱络合物系统被发现是通过氢转移反应使酮甲基化的非常有效的催化剂。在串联过程中使用温和的条件，同时降低催化剂的负载量（1 mol％），该过程涉及甲醇的脱氢，与酮形成的CC键以及氢化铱将新生成的双键氢化以得到烷基化产物。使用这种铱催化剂体系，可以合成许多支链酮，转化率和收率都非常好。
• Iron-Catalyzed Methylation Using the Borrowing Hydrogen Approach
  作者：Kurt Polidano、Benjamin D. W. Allen、Jonathan M. J. Williams、Louis C. Morrill

  DOI：10.1021/acscatal.8b02158

  日期：2018.7.6

  developed using methanol as a C1 building block. This borrowing hydrogen approach employs a Knölker-type (cyclopentadienone)iron carbonyl complex as catalyst (2 mol %) and exhibits a broad reaction scope. A variety of ketones, indoles, oxindoles, amines, and sulfonamides undergo mono- or dimethylation in excellent isolated yields (>60 examples, 79% average yield).

  使用甲醇作为C1结构单元，已经开发了一种一般的铁催化的甲基化方法。这种借入氢的方法采用Knölker型（环戊二烯酮）羰基铁络合物作为催化剂（2mol％），并显示出广泛的反应范围。各种酮类，吲哚类，吲哚类，胺类和磺酰胺类均以优异的分离收率（> 60例，平均收率79％）进行单-或二甲基化反应。
• Ruthenium clay catalyzed chemoselective hydrogenation of unsaturated esters, epoxides, sulfones and phosphonates
  作者：Raluca Aldea、Howard Alper

  DOI：10.1016/s0022-328x(97)00493-2

  日期：1998.1

  Ru-clays were prepared using montmorillonite–PPh2 or montmorillonite–bpy and RuCl3·H2O. The clays obtained were found to be effective catalysts for the reduction of unsaturated esters, epoxides, sulfones and phosphonates.

  使用蒙脱石–PPh 2或蒙脱石–bpy和RuCl 3 ·H 2 O制备Ru粘土。发现所获得的粘土是还原不饱和酯，环氧化物，砜和膦酸酯的有效催化剂。
• Photochemical Asymmetric Nickel‐Catalyzed Acyl Cross‐Coupling
  作者：Eugenio Gandolfo、Xinjun Tang、Sudipta Raha Roy、Paolo Melchiorre

  DOI：10.1002/anie.201910168

  日期：2019.11.18

  Photochemical enantioselective nickel-catalyzed cross-coupling reactions are difficult to implement. We report a visible-light-mediated strategy that successfully couples symmetrical anhydrides and 4-alkyl dihydropyridines (DHPs) to afford enantioenriched α-substituted ketones under mild conditions. The chemistry does not require exogenous photocatalysts. It is triggered by the direct excitation of

  光化学对映选择性镍催化的交叉偶联反应难以实现。我们报告了一种可见光介导的策略，该策略成功地将对称酸酐和4-烷基二氢吡啶（DHPs）偶联，以在温和条件下提供对映体富集的α-取代的酮。化学过程不需要外源光催化剂。它是由DHPs的直接激发触发的，DHPs作为自由基源和还原剂，促进了手性催化镍络合物的周转。