4,4-dimethyl-1-phenylpentan-1-one | 37608-93-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4,4-dimethyl-1-phenylpentan-1-one
• CAS: 37608-93-8
• 化学式: C₁₃H₁₈O
• 分子量: 190.285
• InChiKey: WHQVWTONTCQFHT-UHFFFAOYSA-N

物化性质

• 沸点：
  94 °C(Press: 1 Torr)
• 密度：
  0.934±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 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：

  4,4-dimethyl-1-phenylpentan-1-one 以 苯 为溶剂， 生成 3,3-Dimethyl-1-phenyl-cyclopentanol
  参考文献：
  名称：

  Type II photoprocesses of phenyl ketones. Competitive .delta.-hydrogen abstraction and the geometry of intramolecular hydrogen atom transfers

  摘要：

  DOI：

  10.1021/ja00776a036
• 作为产物：
  描述：

  3,3-二甲基-1-丁酸 在 4-二甲氨基吡啶 、 iron(III) trifluoromethanesulfonate 、 双氧水 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 14.67h， 生成 4,4-dimethyl-1-phenylpentan-1-one
  参考文献：
  名称：

  末端炔烃与烷基过氧化物的铁催化自由基脱羧氧化烷基化

  摘要：

  已经研究了以烷基过氧化物作为烷基化试剂的炔烃的铁催化的烷氧基化反应。烷基过氧化物可容易地从脂族酸获得，并且同时用作烷基化试剂和内部氧化剂。脂肪酸的伯，仲和叔烷基易于掺入C-C三键中，并合成了多种α-烷基化的酮。机理研究表明，该反应涉及高反应性烷基自由基。观察到铁（III）催化剂催化的月桂酸和水之间的独特平衡。

  DOI：

  10.1002/chem.201701830

文献信息

• Traceless Chelation-Controlled Rhodium-Catalyzed Intermolecular Alkene and Alkyne Hydroacylation
  作者：Joel F. Hooper、Rowan D. Young、Andrew S. Weller、Michael C. Willis

  DOI：10.1002/chem.201204056

  日期：2013.2.25

  A new functional‐group tolerant, rhodium‐catalyzed, sulfide‐reduction process is combined with rhodium‐catalyzed chelation‐controlled hydroacylation reactions to give a traceless hydroacylation protocol. Aryl‐ and alkenyl aldehydes can be combined with both alkenes, alkynes and allenes to give traceless products in high yields. A preliminary mechanistic proposal is also presented.

  一种新的能够耐受铑的催化，硫化物还原的功能基团，与铑催化的螯合控制的加氢酰化反应相结合，形成了无痕的加氢酰化方案。芳基和烯基醛可与烯烃，炔烃和丙二烯结合使用，以高收率得到无痕产物。还提出了初步的机械建议。
• Remarkable Dependence of Diastereoselectivity on Anhydrous or Aqueous Solvent in the Indium Hydride Promoted Reductive Aldol Reaction of α,β-Unsaturated Ketones
  作者：Katsuyuki Inoue、Tatsuya Ishida、Ikuya Shibata、Akio Baba

  DOI：10.1002/1615-4169(200206)344:3/4<283::aid-adsc283>3.0.co;2-s

  日期：2002.6

  Dichloroindium hydride generated by the transmetallation between tributyltin hydride and indium trichloride predominantly reduced α,β-unsaturated ketones (enones) with 1,4-selectively even in the presence of aldehydes. Under anhydrous conditions, the successive aldol reaction between the resulting enolates and the remaining aldehydes proceeded with high anti-selectivity. The stereochemistry was dramatically

  通过三丁基氢化锡和三氯化铟之间的金属转移反应生成的氢化二氯铟即使在醛的存在下也主要用 1,4-选择性还原 α,β-不饱和酮（烯酮）。在无水条件下，所得烯醇化物和剩余醛之间的连续羟醛反应以高反选择性进行。通过分别使用水和甲醇作为添加剂和溶剂，立体化学被显着逆转为顺式选择性。
• Direct Decarboxylative–Decarbonylative Alkylation of α-Oxo Acids with Electrophilic Olefins via Visible-Light Photoredox Catalysis
  作者：Jian-Qiang Chen、Rui Chang、Yun-Long Wei、Jia-Nan Mo、Zhu-Yin Wang、Peng-Fei Xu

  DOI：10.1021/acs.joc.7b02628

  日期：2018.1.5

  The decarbonylation of primary, secondary, and tertiary alkyl-substituted acyl radicals has been investigated through photoredox catalysis. A series of quaternary carbons and γ-ketoesters have been directly constructed by the photoredox 1,4-conjugate addition of the corresponding alkyl ketoacids with electrophilic alkenes. And, the tertiary alkyl ketoacids have proved to be good precursors of tertiary

  已经通过光氧化还原催化研究了伯，仲和叔烷基取代的酰基的脱羰作用。通过将相应的烷基酮酸与亲电烯烃进行光氧化还原1，4-共轭加成反应，可以直接构建一系列的季碳和γ-酮酸酯。并且，叔烷基酮酸已被证明是叔烷基自由基的良好前体。
• Solvent-free chelation-assisted intermolecular hydroacylation: effect of microwave irradiation in the synthesis of ketone from aldehyde and 1-alkene by Rh(I) complex
  作者：Chul-Ho Jun、Jong-Hwa Chung、Dae-Yon Lee、André Loupy、Saber Chatti

  DOI：10.1016/s0040-4039(01)00853-x

  日期：2001.7

  As a green alternative to classical homogeneous catalyst in toluene in closed vessels, the intermolecular hydroacylation of 1-alkenes with aldehydes by Rh(I) complex (Wilkinson catalyst) can be realized efficiently under solvent-free conditions. When coupled to microwave activation, it results in a serious improvement when compared to classical conditions.

  作为封闭容器中甲苯中经典均相催化剂的绿色替代品，可以在无溶剂条件下有效地实现Rh（I）配合物（Wilkinson催化剂）对1-烯烃与醛的分子间加氢酰化反应。当与微波激活耦合时，与传统条件相比，它会带来严重的改善。
• Solvent-free chelation-assisted hydroacylation of olefin by rhodium(I) catalyst under microwave irradiation
  作者：André Loupy、Saber Chatti、Sarah Delamare、Dae-Yon Lee、Jong-Hwa Chung、Chul-Ho Jun

  DOI：10.1039/b200442a

  日期：2002.5.10

  A solvent-free protocol for the rhodium(I)-catalyzed intermolecular hydroacylation was achieved under microwave irradiation to furnish various ketones in high yields. The reactivity was improved by the addition of aniline as well as 2-amino-3-picoline and benzoic acid to induce a transimination, which facilitates the formation of intermediate aldimine. A comparison of the reactivity between the reaction performed under the conventional heating mode and the microwave irradiation using monomode reactor revealed an important specific microwave effect during the chelation-assisted hydroacylation. It is supposed that the observed specific microwave effect mainly originates from the formation of aldimine by condensation of aldehyde and amine, which leads to a development of charges in the transition state. This result confirms that the rate-determining step of the reaction is the initial condensation step rather than the subsequent hydroiminoacylation step.

  在无溶剂条件下，通过微波照射实现了铑(I)催化剂催化的分子间氢酰化反应，高效制备了多种酮类化合物。通过添加苯胺、2-氨基-3-吡啶以及苯甲酸引发转亚胺化作用，促进了中间体醛亚胺的形成，从而提高了反应活性。与传统加热方式相比，使用单模微波反应器进行氢酰化反应的活性比较揭示了螯合辅助氢酰化过程中重要的特定微波效应。据推测，所观察到的特定微波效应主要源于醛和胺缩合形成醛亚胺，导致过渡态中电荷的发展。这一结果证实了反应的速率决定步骤是初始的缩合步骤，而非随后的氢亚胺化步骤。

表征谱图