(S)-4-phenylpentan-2-one | 32587-80-7

• 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: (S)-4-phenylpentan-2-one
• 英文别名: (S)-4-phenyl-2-pentanone；4-phenylpentan-2-one；(4S)-4-phenylpentan-2-one
• CAS: 32587-80-7
• 化学式: C₁₁H₁₄O
• 分子量: 162.232
• InChiKey: SYOVWIRLZABVDO-VIFPVBQESA-N

物化性质

• 沸点：
  70 °C(Press: 0.15 Torr)
• 密度：
  0.956±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 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：

  (S)-4-phenylpentan-2-one 在 盐酸 、 ammonium hydroxide 、 氯化亚砜 、 磺酰氯 、 sodium methylate 作用下， 以 甲醇 、 正戊烷 为溶剂， 反应 63.25h， 生成 (2'S,2''S,4S,4'S)-2-<2-<2-(Methoxycarbonyl)-4-phenylpentyl>>-4-(2-phenylpropyl)-4-methyl-3-oxo-1,2,5-thiadiazolidine 1,1-dioxide
  参考文献：
  名称：

  Synthesis of precursors to model styrene/methyl methacrylate copolymer radicals. .alpha.,.alpha.'-Bis(methoxycarbonyl)azoalkanes

  摘要：

  Several symmetrical alpha,alpha'-bis(methoxycarbonyl)azoalkanes 4 were prepared in high yield in two steps from the appropriate alpha-amino esters 13, or in five steps from 4-substituted 4-phenyl-2-butanones 10. The sequence involves the generation, separation, and purification of symmetrical N,N'-disubstituted sulfamides 14 followed by oxidative rearrangement under modified Ohme-Schmitz-Preuschhof conditions to yield the title compounds. In the absence of the oxidant, the sulfamides are converted quantitatively into 2,4-disubstituted 3-oxo-1,2,5-thiadiazolidine 1,1-dioxides 15. In accord with the above methodology, (4S)-4-phenyl-2-pentanone was transformed into (2R,2'R,4S,4'S)-2,2'-bis(methoxycarbonyl)-4,4'-diphenyl-2,2'-azopentane (4b-Ia), the stereochemistry of which was established from that of its precursor (2R,2'R,4S,4'S)-N,N'-bis[2-[2-(methoxycarbonyl)-4-phenylpentyl]]-sulfamide by single-crystal X-ray analysis.

  DOI：

  10.1021/jo00006a014
• 作为产物：
  描述：

  4-hydroxy-4-phenylpentan-2-one 在 valine tert-butyl ester (R)-TRIP salt 二氢吡啶 作用下， 以 二丁醚 、 水 为溶剂， 反应 48.5h， 生成 (S)-4-phenylpentan-2-one
  参考文献：
  名称：

  α,β-不饱和酮的高度对映选择性转移氢化

  摘要：

  我们描述了一种高效且高度对映选择性的 α,β-不饱和酮的共轭转移氢化，该氢化由缬氨酸叔丁酯制成的盐和最近推出的强手性磷酸催化剂 (TRIP) 催化。

  DOI：

  10.1021/ja065708d

文献信息

• Iron- and Cobalt-Catalyzed Asymmetric Hydrosilylation of Ketones and Enones with Bis(oxazolinylphenyl)amine Ligands
  作者：Tomohiko Inagaki、Le Thanh Phong、Akihiro Furuta、Jun-ichi Ito、Hisao Nishiyama

  DOI：10.1002/chem.200903118

  日期：2010.3.8

  Chiral bis(oxazolinylphenyl)amines proved to be efficient auxiliary ligands for iron and cobalt catalysts with high activity for asymmetric hydrosilylation of ketones and asymmetric conjugate hydrosilylation of enones.

  手性双（恶唑啉基苯基）胺被证明是铁和钴催化剂的有效辅助配体，对酮的不对称氢化硅烷化和烯酮的不对称共轭氢化硅烷化具有高活性。
• Highly Enantioselective Iridium-Catalyzed Hydrogenation of Conjugated Trisubstituted Enones
  作者：Bram B. C. Peters、Jira Jongcharoenkamol、Suppachai Krajangsri、Pher G. Andersson

  DOI：10.1021/acs.orglett.0c04012

  日期：2021.1.1

  Asymmetric hydrogenation of conjugated enones is one of the most efficient and straightforward methods to prepare optically active ketones. In this study, chiral bidentate Ir–N,P complexes were utilized to access these scaffolds for ketones bearing the stereogenic center at both the α- and β-positions. Excellent enantiomeric excesses, of up to 99%, were obtained, accompanied with good to high isolated

  共轭烯酮的不对称氢化是制备光学活性酮的最有效，最直接的方法之一。在这项研究中，手性双齿Ir-N，P络合物被用于进入这些支架，以获得在α和β位置均具有立体中心的酮。获得了高达99％的出色的对映体过量，并具有良好或较高的分离产率。具有挑战性的二烷基取代的底物（很难通过令人满意的手性诱导进行氢化）以高度对映选择性的方式氢化。
• In Situ Generated Gold Nanoparticles on Active Carbon as Reusable Highly Efficient Catalysts for a C−C Stille Coupling
  作者：Julia Holz、Camilla Pfeffer、Hualiang Zuo、Dennis Beierlein、Gunther Richter、Elias Klemm、René Peters

  DOI：10.1002/anie.201902352

  日期：2019.7.22

  traditional C −C cross‐coupling reactions they have been rarely used and Pd catalysts usually give a superior performance. Herein we report that in situ formed gold metal nanoparticles are highly active catalysts for the cross coupling of allylstannanes and activated alkylbromides to form C −C bonds. Turnover numbers up to 29 000 could be achieved in the presence of active carbon as solid support, which allowed

  金纳米颗粒催化剂在许多工业生产过程中很重要。然而，对于传统的C -C交叉偶联反应，很少使用它们，并且Pd催化剂通常具有优异的性能。本文中，我们报道原位形成的金金属纳米颗粒是烯丙基锡烷与活化的烷基溴化物形成C -C键的交叉偶联的高活性催化剂。在活性炭作为固体载体的情况下，可实现高达29000的周转量，这有利于催化剂的回收和再利用。本研究是一种罕见的案例，其中在有机卤化物与有机金属试剂的交叉偶联反应中，金金属催化剂优于钯催化剂。
• Readily Accessible Chiral Diene Ligands for Rh-Catalyzed Enantioselective Conjugate Additions of Boronic Acids
  作者：Barry M. Trost、Aaron C. Burns、Thomas Tautz

  DOI：10.1021/ol201754c

  日期：2011.9.2

  the broad scope of the Pd-catalyzed asymmetric alkylation of meso- and d,l-divinylethylene carbonate, several chiral diene ligands were prepared in two steps from commercial materials. Subsequently, these ligands were evaluated in the Rh-catalyzed asymmetric conjugate addition of boronic acids to enones.

  由于Pd催化的内消旋和d，1-二乙烯基碳酸亚乙酯的不对称烷基化反应的广泛范围，从商业原料中分两步制备了几种手性二烯配体。随后，在硼酸到烯酮的Rh催化的不对称共轭加成中评估了这些配体。
• Chiral-Anion-Mediated Asymmetric Heck–Matsuda Reaction of Acyclic Alkenyl Alcohols
  作者：Tao Zhang、Wen-Ao Li、Hong-Cheng Shen、Shu-Sen Chen、Zhi-Yong Han

  DOI：10.1021/acs.orglett.1c00152

  日期：2021.2.19

  Acyclic internal alkenes are a class of challenging substrates in asymmetric Heck-type reactions due to difficulties related to both reactivity and selectivity control. Employing acyclic alkenyl alcohols, an asymmetric Heck–Matsuda reaction is developed through the strategy of chiral anion phase transfer. Various chiral ketones could be obtained in high levels of enantioselectivity. A catalytic amount

  由于与反应性和选择性控制有关的困难，无环内烯烃是不对称Heck型反应中一类具有挑战性的底物。利用无环烯基醇，通过手性阴离子相转移策略发展了不对称的Heck-Matsuda反应。可以高水平的对映选择性获得各种手性酮。催化量的二甲基亚砜（DMSO）作为添加剂对于抑制氢化钯介导的副反应至关重要。