(E)-3-methyl-1-phenylpent-3-en-1-one

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-3-methyl-1-phenylpent-3-en-1-one
• 化学式: C₁₂H₁₄O
• 分子量: 174.243
• InChiKey: QYNLMCLVJGVTMU-XCVCLJGOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 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：

  cis-2-(1-hydroxyethyl)-2-methyl-1-phenylcyclopropanol 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 以95%的产率得到(E)-3-methyl-1-phenylpent-3-en-1-one
  参考文献：
  名称：

  Stereoselective Synthesis of β,γ-Unsaturated Ketones by Acid-Mediated Julia-Type Transformation from 2-(1-Hydroxyalkyl)-1-alkylcyclopropanols

  摘要：

  通过三氟乙酸（TFA）介导的反应，实现了从δ,δ-不饱和酮得到的 2-（1-羟基烷基）-1-烷基环丙醇到δ,δ-不饱和酮的高效转化。

  DOI：

  10.1055/s-2008-1067077

文献信息

• Ketone Synthesis by Direct, Orthogonal Chemoselective Hydroacylation of Alkenes with Amides: Use of Alkenes as Surrogates of Alkyl Carbanions
  作者：Hui Geng、Pei‐Qiang Huang

  DOI：10.1002/cjoc.201900252

  日期：2019.8

  and direct transformation of carboxamides are two exciting areas that have attracted considerable attention in recent years. We report herein that secondary amides, the least reactive derivatives of carbonyl compounds, upon activated with triflic anhydride, can serve as effective hydroacylating reagents in partner with alkenes to yield ketones at ambient temperature. The method was applied to the one‐step

  烯烃的直接官能化和羧酰胺的直接转化是近年来令人瞩目的两个令人兴奋的领域。我们在此报道，仲酰胺，即羰基化合物的反应性最低的衍生物，在用三氟甲磺酸酐活化后，可以与烯烃一起作为有效的氢酰化试剂，在环境温度下产生酮。该方法已用于外消旋二氢芳基羟色酮的一步合成。在这种方法中，烯烃用作有机金属试剂的替代物，从而可以进行正交的化学选择性反应。许多烯烃（如camp烯和降冰片烯）的现成性允许一步合成酮，而传统方法则需要几个步骤。
• α- and β-Functionalized Ketones from 1,3-Dienes and Aldehydes: Control of Regio- and Enantioselectivity in Hydroacylation of 1,3-Dienes
  作者：Mahesh M. Parsutkar、T. V. RajanBabu

  DOI：10.1021/jacs.1c06245

  日期：2021.8.18

  oxidative dimerization mechanism that involves a Co(I)/Co(III) redox cycle that appears to be initiated by a cationic Co(I) intermediate. Studies of reactions using isolated neutral and cationic Co(I) complexes confirm the critical role of the cationic intermediates in these reactions. Enantioselective 1,2-hydroacylation of 2-trimethylsiloxy-1,3-diene reveals a hitherto undisclosed route to chiral siloxy-protected

  酮是有机合成中使用最广泛的中间体之一，用廉价原料合成酮可能会产生相当大的影响。二烯的区域选择性和对映选择性加氢酰化反应可以轻松进入有用的带有酮的手性基序，并具有适合进一步阐述的附加潜在官能团（烯烃）。三类二烯，2-或4-单取代和2,4-二取代1,3-二烯，经历钴(I)催化的区域选择性和对映选择性加氢酰化，得到具有高对映体比率(er)的产物。这些反应高度依赖于配体，我们已经确定了每类二烯最有用的配体和反应条件。 2-取代和2,4-二取代二烯主要进行1,2-加成，而4-取代末端二烯可进行高度对映选择性的4,1-或4,3-加氢酰化，具体取决于醛、脂肪醛进行4,1-加成和芳香醛进行4,3-加成。底物包括原料二烯、异戊二烯（1.4 美元/千克）和月桂烯（129 美元/千克）以及几种常见的醛。我们提出了一种氧化二聚机制，涉及似乎由阳离子 Co(I) 中间体引发的 Co(I)/Co(III) 氧化还原循环。使用分离的中性和阳离子
• Nickel-Catalyzed Coupling of Arylzinc Halides with Thioesters
  作者：Paul H. Gehrtz、Prasad Kathe、Ivana Fleischer

  DOI：10.1002/chem.201801887

  日期：2018.6.21

  The Pd‐catalyzed Fukuyama reaction of thioesters with organozinc reagents is a mild, functional‐group‐tolerant method for acylation chemistry. Its Ni‐catalyzed variant might be a sustainable alternative to expensive catalytic Pd sources. We investigated the reaction of S‐ethyl thioesters with aryl zinc halides with hetero‐ and homotopic Ni precatalysts and several ligands. The results show that both

  Pd催化的硫酯与有机锌试剂的Fukuyama反应是温和的，对官能团具有耐受性的酰化化学方法。其Ni催化的变体可能是昂贵的Pd催化源的可持续替代方案。我们研究了S-乙基硫代酯与芳基卤化锌与杂和同位Ni预催化剂和几种配体的反应。结果表明，同位和异位物种均可促进催化作用。确定了使用可操作均匀定义的Ni配合物的底物范围。假定酰基为短寿命的中间体。
• Nickel-Catalyzed Electrochemical Couplings of Vinyl Halides:  Synthetic and Stereochemical Aspects
  作者：C. Cannes、S. Condon、M. Durandetti、J. Périchon、J.-Y. Nédélec

  DOI：10.1021/jo000182f

  日期：2000.7.1

  Homo- and cross-coupling involving alkenyl halides have been performed efficiently using an electroassisted nickel-complex catalysis. Valuable product such as conjugated dienes, beta,gamma- or gamma,delta-unsaturated esters, ketones, or nitriles, as well as alkenylated aryl compounds are thus prepared with high yields and high stereoselectivity. Partial isomerization is only observed in a few cases, when the alkenyl halide is involved in a late step of the catalytic cycle. This is the case in the preparation of (Z,Z)-1,3-diene.
• Regioselective Hydroacylation of 1,3-Dienes by Cobalt Catalysis
  作者：Qing-An Chen、Daniel K. Kim、Vy M. Dong

  DOI：10.1021/ja500268w

  日期：2014.3.12

  We describe a cobalt-catalyzed hydroacylation of 1,3-dienes with non-chelating aldehydes. Aromatic aldehydes provide 1,4-addition products as the major isomer, while aliphatic aldehydes favor 1,2-hydroacylation products. The kinetic profile supports an oxidative cyclization mechanism involving a cobaltacycle intermediate that undergoes transformation with high regio- and stereoselectivity.