1-异丙烯基-3-甲基苯 | 1124-20-5

• 物质功能分类: 化学试剂 - 有机试剂 - 烯烃（环状与无环状）
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-异丙烯基-3-甲基苯
• 中文别名: 1-甲基-3-(1-甲基乙烯基)苯；Α,3-二甲基苯乙烯
• 英文名称: 2-(3-methylphenyl)propene
• 英文别名: 1-methyl-3-(prop-1-en-2-yl)benzene；m-cymenene；alpha,3-Dimethylstyrene；1-methyl-3-prop-1-en-2-ylbenzene
• CAS: 1124-20-5
• 化学式: C₁₀H₁₂
• 分子量: 132.205
• InChiKey: XXTQHVKTTBLFRI-UHFFFAOYSA-N

物化性质

• 熔点：
  -59.27°C (estimate)
• 沸点：
  189.15°C (estimate)
• 密度：
  0.9010
• 溶解度：
  可溶于氯仿（少许）、甲醇（少许）
• LogP：
  3.782 (est)
• 保留指数：
  1075;1061;1061;1069;1062;1070;1072;1065

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 危险等级：
  3
• 海关编码：
  2902909090
• 危险品运输编号：
  UN 3295
• 包装等级：
  III
• 危险类别：
  3
• 危险性防范说明：
  P210,P233,P240,P241,P242,P243,P261,P264,P271,P280,P303+P361+P353,P304+P340+P312,P305+P351+P338,P337+P313,P362,P370+P378,P403+P233+P235,P405,P501
• 危险性描述：
  H225,H315,H319,H335
• 储存条件：
  2-8°C

反应信息

• 作为反应物：
  描述：

  1-异丙烯基-3-甲基苯 在 AD-mix β 、 10 % platinum on carbon 、 sodium ethanolate 、 碳酸氢钠 作用下， 以 乙醚 、 乙醇 、 水 、 叔丁醇 为溶剂， 生成 (5R)-5-methyl-5-(3-methylphenyl)oxazolidine-2,4-dione
  参考文献：
  名称：

  Benzimidazolones: A New Class of Selective Peroxisome Proliferator-Activated Receptor γ (PPARγ) Modulators

  摘要：

  A series of benzimidazolone carboxylic acids and oxazolidinediones were designed and synthesized in search of selective PPAR gamma modulators (SPPAR gamma Ms) as potential therapeutic agents for the treatment of type II diabetes mellitus (T2DM) with improved safety profiles relative to rosiglitazone and pioglitazone, the currently marketed PPAR gamma full agonist drugs. Structure activity relationships of these potent and highly selective SPPAR gamma Ms were studied with a focus on their unique profiles as partial agonists or modulators. A variety of methods, such as X-ray aystallographic analysis, PPAR gamma transactivation coactivator profiling, gene expression profiling, and mutagenesis studies, were employed to reveal the differential interactions of these new analogues with PPAR gamma receptor in comparison to full agonists. In rodent models of T2DM, benzimidazolone analogues such as (5R)-5-(3-{[3-(5-methoxybenzisoxazol-3-yl)benzimidazol-1-yl]methyl}phenyl)-5-methyloxazolidinedione (Si) demonstrated efficacy equivalent to that of rosiglitazone. Side effects, such as fluid retention and heart weight gain associated with PPAR gamma full agonists, were diminished with 51 in comparison to rosiglitazone based on studies in two independent animal models.

  DOI：

  10.1021/jm201061j
• 作为产物：
  描述：

  1-环丙基-3-甲基苯 在 正丁基锂 、 potassium tert-butylate 作用下， 以 正己烷 为溶剂， 以12%的产率得到1-异丙烯基-3-甲基苯
  参考文献：
  名称：

  Preparation and ring-opening of benzylic and allylic cyclopropyl dianions

  摘要：

  DOI：

  10.1021/jo00038a050

文献信息

• Ground-State Electron Transfer as an Initiation Mechanism for Biocatalytic C–C Bond Forming Reactions
  作者：Haigen Fu、Heather Lam、Megan A. Emmanuel、Ji Hye Kim、Braddock A. Sandoval、Todd K. Hyster

  DOI：10.1021/jacs.1c04334

  日期：2021.6.30

  The development of non-natural reaction mechanisms is an attractive strategy for expanding the synthetic capabilities of substrate promiscuous enzymes. Here, we report an “ene”-reductase catalyzed asymmetric hydroalkylation of olefins using α-bromoketones as radical precursors. Radical initiation occurs via ground-state electron transfer from the flavin cofactor located within the enzyme active site

  非天然反应机制的发展是扩大底物混杂酶合成能力的有吸引力的策略。在这里，我们报道了使用 α-溴酮作为自由基前体的“烯”-还原酶催化烯烃的不对称加氢烷基化。自由基起始通过位于酶活性位点内的黄素辅因子的基态电子转移发生，这是黄素生物催化中代表性不足的机制。使用四轮位点饱和诱变从发酵单胞菌中获取“烯”还原酶烟酰胺依赖性环己酮还原酶 (NCR) 的变体能够催化环化以提供具有高水平对映选择性的β-手性环戊酮。此外，野生型 NCR 可以通过对自由基终止步骤的精确立体化学控制来催化分子间偶联。本报告强调了基态电子转移在实现非天然生物催化 C-C 键形成反应方面的实用性。
• Synthesis of 2-Substituted Propenes by Bidentate Phosphine-Assisted Methylenation of Acyl Fluorides and Acyl Chlorides with AlMe₃
  作者：Xiu Wang、Zhenhua Wang、Yuya Asanuma、Yasushi Nishihara

  DOI：10.1021/acs.orglett.9b01059

  日期：2019.5.17

  methylenation of acyl fluorides and acyl chlorides with substituted with aryl, alkenyl, and alkyl groups trimethylaluminum afforded an array of 2-substituted propene derivatives. The addition of a catalytic amount of DPPM increased an efficiency of the reactions. Trimethylaluminum as the methylenation reagent not only eliminates the presynthesis of methylene transfer reagent, but provides an efficient method for

  芳基，烯基和烷基三甲基铝取代的酰氟和酰氯的双膦膦化亚甲基化提供了一系列2取代的丙烯衍生物。催化量的DPPM的添加提高了反应效率。三甲基铝作为亚甲基化试剂，不仅消除了亚甲基转移试剂的预合成，而且为合成一系列2-取代的丙烯提供了一种有效的方法。
• Visible-Light-Promoted Metal-Free Aerobic Hydroxyazidation of Alkenes
  作者：Bo Yang、Zhan Lu

  DOI：10.1021/acscatal.7b02892

  日期：2017.12.1

  A highly efficient visible-light-promoted metal-free aerobic hydroxyazidation of alkenes has been developed. This protocol was operationally simple with broad substrate scope using relatively simple and readily available starting materials, such as alkenes and air, to construct valuable β-azido alcohols which are significant building blocks to build N-containing compounds. The distinct possible mechanisms

  已经开发了高效的可见光促进的烯烃的无金属需氧羟基叠氮化。该方案操作简单，具有广泛的底物范围，使用相对简单且容易获得的起始原料（例如烯烃和空气）来构建有价值的β-叠氮基醇，这是构建含N化合物的重要基础。通过叠氮基和烯基阳离子的产生，提出了不同的可能机理。
• Visible-Light-Driven, Metal-Free Divergent Difunctionalization of Alkenes Using Alkyl Formates
  作者：Ming Zheng、Jing Hou、Le-Wu Zhan、Yan Huang、Ling Chen、Li-Li Hua、Yan Li、Wan-Ying Tang、Bin-Dong Li

  DOI：10.1021/acscatal.0c04332

  日期：2021.1.15

  difunctionalization of alkenes has received considerable attention as an efficient and straightforward way to increase molecular complexity. However, examples of the difunctionalization of alkenes initiated by the intermolecular addition of alkoxycarbonyl radicals providing substituted alkanoates are still rare. Herein, we present the visible light-driven metal-free divergent difunctionalization of alkenes triggered

  在最近几十年中，烯烃的双官能化作为增加分子复杂性的有效而直接的方法受到了广泛的关注。然而，通过分子间加成烷氧基羰基以提供取代的链烷酸酯而引发的烯烃的双官能化的例子仍然很少。在这里，我们介绍了在环境条件下由烷氧基羰基分子间加成引发的可见光驱动的烯烃的无金属发散双官能化。使用烷基甲酸酯作为烷氧羰基自由基的前体，并使用4CzIPN作为光催化剂，可以轻松获得具有高官能团耐受性和高官能度的各种取代链烷酸酯，包括β-烷氧基，β-羟基，β-二甲氧基甲氧基和β-甲酰氧基链烷酸酯。效率。此外，N-烷氧基叠氮盐。
• Cu(I)-Catalyzed Diamination of Disubstituted Terminal Olefins: An Approach to Potent NK₁ Antagonist
  作者：Yuehong Wen、Baoguo Zhao、Yian Shi

  DOI：10.1021/ol900808z

  日期：2009.6.4

  This paper describes a diamination process using di-tert-butyldiaziridinone as nitrogen source and CuCl as catalyst. A wide variety of disubstituted terminal olefins can be efficiently diaminated in good yields under mild condition. This diamination process was used to synthesize potent NK1 antagonist Sch 425078.

  本文描述了使用二叔丁基二氮杂环丙烷酮作为氮源和氯化铜作为催化剂的二胺化过程。多种二取代端烯烃可以在温和条件下以良好的产率有效地二胺化。这种二胺化过程用于合成有效的 NK 1拮抗剂Sch 425078。