(4-methylpent-1-yn-1-yl)benzene | 42049-53-6

• 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: (4-methylpent-1-yn-1-yl)benzene
• 英文别名: (4-Methylpent-1-ynyl)benzene；4-methylpent-1-ynylbenzene
• CAS: 42049-53-6
• 化学式: C₁₂H₁₄
• 分子量: 158.243
• InChiKey: OVZNWVIADNDQCJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (4-methylpent-1-yn-1-yl)benzene 在 lithium hydroxide monohydrate 、 3-butyl-1-methyl-1H-imidazol-3-ium hexafluorophosphate 作用下， 以 甲醇 、 水 、 甲苯 为溶剂， 生成 4-isobutyl-5-phenylisoxazole-3-carboxylic acid lithium salt
  参考文献：
  名称：

  Potent and Selective Agonists of Sphingosine 1-Phosphate 1 (S1P₁): Discovery and SAR of a Novel Isoxazole Based Series

  摘要：

  Sphingosine 1-phosphate (S1P) is the endogenous ligand for the sphingosine 1-phosphate receptors (S1P(1-5)) and evokes a variety of cellular responses through their stimulation. The interaction of S1P with the S1P receptors plays a fundamental physiological role in a number of processes including vascular development and stabilization, lymphocyte migration, and proliferation. Agonism of S1P(1), in particular, has been shown to play a significant role in lymphocyte trafficking from the thymus and secondary lymphoid organs, resulting in immunosuppression. This article will detail the discovery and SAR of a potent and selective series of isoxazole based full agonists of S1P(1). Isoxazole 6d demonstrated impressive efficacy when administered orally in a rat model of arthritis and in a mouse experimental autoimmune encephalomyelitis (EAE) model of multiple sclerosis.

  DOI：

  10.1021/acs.jmedchem.6b00089
• 作为产物：
  描述：

  4-methyl-1-phenyl-1-pentyn-3-yl formate 在 bis(acetylacetonato)palladium(II) 、 1,6-双(二苯基膦基)己烷 作用下， 以 甲苯 为溶剂， 反应 30.0h， 以92%的产率得到(4-methylpent-1-yn-1-yl)benzene
  参考文献：
  名称：

  通过配体控制的钯催化的炔丙基甲酸酯的脱羧氢解选择性合成丙二烯和炔烃

  摘要：

  描述了配体控制的区域选择性钯催化的炔丙基甲酸酯的脱羧氢解。通过使用1,2-二苯基膦基乙烷（DPPE）或1,6-双二苯基膦基己烷（DPPH）作为催化剂配体，可以获得广泛的丙二烯和炔烃。

  DOI：

  10.1021/ol100405k

文献信息

• Copper‐Catalyzed Synthesis of Tetrasubstituted Alkenes via Regio‐ and <i>anti</i> ‐Selective Addition of Silylboronates to Internal Alkynes
  作者：Hirokazu Moniwa、Ryo Shintani

  DOI：10.1002/chem.202100933

  日期：2021.5.12

  As a new and complementary method for the synthesis of structurally defined tetrasubstituted alkenes, a copper‐catalyzed regio‐ and anti‐selective addition of silylboronates to unsymmetric internal alkynes has been developed. A variety of unactivated alkynes can be employed with high selectivity under simple and mild conditions, and the resulting products have been further functionalized by utilizing

  作为合成结构确定的四取代烯烃的一种新的补充方法，已开发了铜催化的甲硅烷基硼酸酯向不对称内部炔烃的区域和反选择性加成反应。可以在简单和温和的条件下以高选择性使用多种未活化的炔烃，并且通过利用烯烃上的甲硅烷基和硼烷基进一步将所得产物官能化。
• Cobalt-Catalyzed Asymmetric Sequential Hydroboration/Hydrogenation of Internal Alkynes
  作者：Jun Guo、Biao Cheng、Xuzhong Shen、Zhan Lu

  DOI：10.1021/jacs.7b09832

  日期：2017.11.1

  and enantioselective cobalt-catalyzed hydroboration/hydrogenation of internal alkynes with HBpin and a hydrogen balloon in one pot was developed. A new type of chiral imidazoline iminopyridine (IIP) ligand was introduced for the first time in this novel and efficient strategy. This protocol used relatively simple and available starting materials with good functional group tolerance to construct more valuable

  开发了一种高度区域选择性和对映选择性钴催化的内部炔烃与 HBpin 和一个罐中的氢气球的硼氢化/氢化。在这种新颖有效的策略中首次引入了一种新型手性咪唑啉亚氨基吡啶（IIP）配体。该协议使用相对简单和可用的具有良好官能团耐受性的起始材料来构建更有价值的手性二级有机硼酸酯。主要的机理研究表明，钴催化的炔烃区域选择性硼氢化反应最初确实发生，随后是 HBpin 促进和钴催化的烯基硼酸酯的对映选择性氢化。
• Palladium-Catalyzed Synthesis of 2,3-Disubstituted 5-Azaindoles via Heteroannulation Reaction and of 2-Substituted 5-Azaindoles through Domino Sila-Sonogashira/5-Endo Cyclization
  作者：Marion Livecchi、Géraldine Calvet、Frédéric Schmidt

  DOI：10.1021/jo300481s

  日期：2012.6.1

  A general and efficient procedure for the synthesis of 2,3-disubstituted 5-azaindoles through the palladium-catalyzed heteroannulation of 4-acetamido-3-iodopyridines and diaryl-, dialkyl-, or arylalkylalkynes is described along with a study of the reaction regioselectivity. The preparation of 2-monosubstituted 5-azaindoles via sila-Sonogashira/5-endo cyclization is also reported. These methods allowed

  描述了通过钯催化的4-乙酰氨基-3-碘吡啶和二芳基，二烷基或芳基烷基炔烃的异环合成2,3-二取代的5-氮杂吲哚的一般有效方法，以及对反应区域选择性的研究。 。还报道了通过sila-Sonogashira / 5-endo环化制备2-单取代的5-氮杂吲哚。这些方法使我们能够以高收率制备36种不同取代的5-氮杂吲哚。
• Binuclear Pd(I)–Pd(I) Catalysis Assisted by Iodide Ligands for Selective Hydroformylation of Alkenes and Alkynes
  作者：Yang Zhang、Sebastian Torker、Michel Sigrist、Nikola Bregović、Paweł Dydio

  DOI：10.1021/jacs.0c09254

  日期：2020.10.21

  is driven by a novel activation strategy and features a unique Pd(I)-Pd(I) mechanism, involving an iodide-assisted binuclear step to release the product. This method enables β-selective hydroformylation of a large range of alkenes and alkynes, including sensitive starting materials. Its utility is demonstrated in the synthesis of antiobesity drug Rimonabant and anti-HIV agent PNU-32945. In a broader

  自 1938 年被发现以来，加氢甲酰化得到了彻底的研究并在工业中得到了广泛的应用（每年超过 107 公吨）。然而，迄今为止，使用成熟的 Rh 或助催化剂精确控制其区域选择性的能力已被证明是难以捉摸的，从而限制了许多具有合成价值的醛的获得。钯催化剂代表了一种有吸引力的替代品，但由于不希望的副加工，它们的使用仍然很少。在这里，我们报告了一种高选择性和异常活性的催化剂系统，该系统由一种新型活化策略驱动，并具有独特的 Pd(I)-Pd(I) 机制，涉及碘化物辅助双核步骤以释放产物。这种方法能够对大范围的烯烃和炔烃（包括敏感的起始材料）进行 β 选择性加氢甲酰化。它的效用在抗肥胖药物利莫那班和抗 HIV 药物 PNU-32945 的合成中得到了证明。在更广泛的背景下，新的机理理解使其他对化学工业具有重要意义的羰基化反应的发展成为可能。
• Diverse Reactivity in a Rhodium(III)-Catalyzed Oxidative Coupling of<i>N</i>-Allyl Arenesulfonamides with Alkynes
  作者：Dongqi Wang、Fen Wang、Guoyong Song、Xingwei Li

  DOI：10.1002/anie.201206918

  日期：2012.12.3

  Olefinic CH activation of N‐allyl sulfonamides in the presence of [RhCp*Cl2}2] (Cp*=Me5C5) enabled their oxidative coupling with alkynes to generate 1,2‐dihydropyridines, pyridines, and cyclopentenones (see scheme; Ts=p‐toluenesulfonyl). The type of highly substituted product formed was controlled by the substitution of the allyl group and the reaction conditions.

  烯Ç  ħ活化的ñ -烯丙基中的存在磺酰胺[RHCP *氯2 } 2 ]（CP * =我5 Ç 5）启用与炔其氧化偶合，以生成1,2-二氢吡啶，吡啶，和环戊烯酮（参见方案； Ts =对甲苯磺酰基）。形成的高度取代的产物的类型通过烯丙基的取代和反应条件来控制。