2-(4-methylphenyl)pent-4-enoic acid | 51230-90-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 2-(4-methylphenyl)pent-4-enoic acid
• 英文别名: 2-(p-tolyl)pent-4-enoic acid；2-(4-Methylphenyl)pent-4-enoic acid
• CAS: 51230-90-1
• 化学式: C₁₂H₁₄O₂
• 分子量: 190.242
• InChiKey: HBZHVUXHIIPNEA-UHFFFAOYSA-N

物化性质

• 熔点：
  39-41 °C(Solv: ethyl acetate (141-78-6))
• 沸点：
  180 °C(Press: 20 Torr)
• 密度：
  1.065±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(4-methylphenyl)pent-4-enoic acid 在 叔丁基过氧化氢 、 4-二甲氨基吡啶 、 三乙胺 、 copper(ll) bromide 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 14.08h， 生成
  参考文献：
  名称：

  CuX 2介导的不饱和酰胺的氧溴化/氨基氯化：亚氨基内酯和内酰胺的合成†

  摘要：

  我们在这里报道了CuX 2介导的γ，δ-不饱和酰胺的卤代环化，分别用于在温和的反应条件下合成功能化的亚氨基内酯和内酰胺。机制研究表明，Ñ -attack环化是通过自由基途径而oxycyclization是通过在激活℃的亲核攻击C键。

  DOI：

  10.1039/c5ob00520e
• 作为产物：
  描述：

  对甲基苯乙酸 在 盐酸 、 lithium hydroxide 、 正丁基锂 、 二异丙胺 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 为溶剂， 反应 23.0h， 生成 2-(4-methylphenyl)pent-4-enoic acid
  参考文献：
  名称：

  Synthesis and structure–antifungal activity Relationships of 3-Aryl-5-alkyl-2,5-dihydrofuran-2-ones and Their Carbanalogues: further refinement of tentative pharmacophore group

  摘要：

  Two series of 3-(substituted phenyl)-5-alkyl-2,5-dihydrofuran-2-ones related to a natural product, (-)incrustoporine, were synthesized and their in vitro antifungal activity evaluated. The compounds with halogen substituents on the phenyl ring exhibited selective antifungal activity against the filamentous strains of Absidia corymbifera and Aspergillus fumigatus. On the other hand, the influence of the lenghth of the alkyl chain at C(5) was marginal. The antifungal effect of the most active compound against the above strains was higher than that of ketoconazole, and close to that of amphotericin B. In order to verify the hypothesis about a possible relationship between the Michael-accepting ability of the compounds and their antifungal activity, a series of simple carbanalogues, 2-(substituted phenyl)cyclopent-2-enones, was prepared and subjected to antifungal activity assay as well. (C) 2003 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(03)00220-7

文献信息

• Oxidative oxygen-nucleophilic bromo-cyclization of alkenyl carbonyl compounds without organic wastes using alkali metal reagents in green solvent
  作者：Katsuhiko Moriyama、Chihiro Nishinohara、Toru Sugiue、Hideo Togo

  DOI：10.1039/c5ra19851h

  日期：——

  developed via the oxidative umpolung of bromide using alkali metal bromide and inorganic oxidant to provide the corresponding cyclization products in high yields. In particular, the use of AcOEt, the solvent of choice for green sustainable reactions, led to the high reactivities of the present reactions. This methodology is highly recommended for green sustainable chemistry because it uses stable and non-hazardous

  通过使用碱金属溴化物和无机氧化剂，通过溴化物的氧化反应，开发了烯基羧酸的溴内酯化和作为氧亲核性溴环化反应的N-烯丙基酰胺的溴环化反应，从而高收率地提供了相应的环化产物。特别地，使用AcOEt，绿色可持续反应的首选溶剂，导致了本反应的高反应性。强烈建议将此方法用于绿色可持续化学，因为它使用稳定且无害的试剂代替其他溴试剂和氧化剂，并且不会产生污染环境的有机废物。
• Highly Chemo- and Enantioselective Synthesis of 3-Allyl-3-aryl Oxindoles via the Direct Palladium-Catalyzed α-Arylation of Amides
  作者：Xinjun Luan、Linglin Wu、Emma Drinkel、Ronaldo Mariz、Michele Gatti、Reto Dorta

  DOI：10.1021/ol1003093

  日期：2010.5.7

  A new NHC·Pd-catalyzed asymmetric α-arylation of amides is reported that gives direct access to synthetically valuable, allylated oxindoles with quaternary carbon centers. The reaction is made possible by the introduction of a new chiral NHC ligand. The palladium complexes derived therefrom combine excellent reactivity with high chemo- and enantioselectivity for the title transformation.

  据报道，一种新的NHC·Pd催化的酰胺的不对称α-芳基化反应可直接获得具有季碳中心的合成有价值的烯丙基化吲哚。通过引入新的手性NHC配体使反应成为可能。由其衍生的钯配合物将优异的反应性与对标题转化的高化学和对映选择性结合在一起。
• Trialkylamine-Mediated Intramolecular Acylation of Akenes with Carboxylic Acid Chlorides
  作者：Jun-ichi Matsuo、Takaya Hoshikawa、Shun Sasaki、Hiroyuki Ishibashi

  DOI：10.1248/cpb.58.591

  日期：——

  Trialkylamine-mediated intramolecular cyclization of pent-4-enoyl chlorides was studied. Substitution with a tertiary alkyl group at the 2-position gave cyclopent-2-en-1-ones, while substitution with an aromatic group gave enol esters, which were formed by O-acylation of initially formed 3-chlorocyclopentanones with ketenes.

  研究了三烷基胺介导的戊-4-烯酰氯分子内环化。在 2 位用叔烷基取代可得到环戊-2-烯-1-酮，而用芳香基取代可得到烯醇酯，烯醇酯是由最初形成的 3-氯环戊酮与烯酮发生 O-酰化反应而形成的。
• Reductive-Delay Heck 1,1-Diarylation of Terminal Alkenes
  作者：Huihui Shao、Yao Zhao、Shuangqiang Wang、Rizhi Chen、Jianrong Steve Zhou、Xiaojin Wu

  DOI：10.1021/acs.orglett.2c02416

  日期：2022.9.16

  Pd-catalyzed chemo- and regiocontrollable 1,1-diarylation of unactivated aliphatic alkenes with two aryl halides was developed. Under the cationic reductive-delay Heck pathway, the first aryl insertion is followed by β-H elimination, while the second aryl insertion is terminated by C–H bond formation.

  开发了 Pd 催化的化学和区域可控的 1,1-二芳基化未活化的脂肪族烯烃与两个芳基卤化物。在阳离子还原延迟Heck途径下，第一个芳基插入之后是β-H消除，而第二个芳基插入由C-H键形成终止。
• Diaryl substituted pyrrolidinones and pyrrolones as 5-HT2C inhibitors: Synthesis and biological evaluation
  作者：Fabrizio Micheli、Alessandra Pasquarello、Giovanna Tedesco、Dieter Hamprecht、Giorgio Bonanomi、Anna Checchia、Albert Jaxa-Chamiec、Federica Damiani、Silvia Davalli、Daniele Donati、Chiara Gallotti、Marcella Petrone、Marilisa Rinaldi、Graham Riley、Silvia Terreni、Martyn Wood

  DOI：10.1016/j.bmcl.2006.05.034

  日期：2006.8

  Within the continuous quest for the discovery of novel compounds able to treat anxiety and depression, the generation of a pharmacophore model for 5-HT2C receptor antagonists and the discovery of a new class of potent and selective 5-HT2C molecules are reported. (c) 2006 Elsevier Ltd. All rights reserved.