2-甲基-4-o-甲苯基丁-3-炔-2-醇 | 40888-14-0

• 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: 2-甲基-4-o-甲苯基丁-3-炔-2-醇
• 英文名称: 2-methyl-4-(o-tolyl)but-3-yn-2-ol
• 英文别名: 1-(o-tolyl)-3-methyl-1-butyn-3-ol；2-methyl-4-(2-methylphenyl)-3-butyn-2-ol；2-methyl-4-(2-methylphenyl)but-3-yn-2-ol
• CAS: 40888-14-0
• 化学式: C₁₂H₁₄O
• 分子量: 174.243
• InChiKey: ZVFBFIMYVLBIHJ-UHFFFAOYSA-N

物化性质

• 沸点：
  281.5±33.0 °C(Predicted)
• 密度：
  1.02±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  13
• 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：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 海关编码：
  2902909090

SDS

2-甲基-4-邻甲苯基丁-3-炔-2-醇MSDS英文版

反应信息

• 作为反应物：
  描述：

  2-甲基-4-o-甲苯基丁-3-炔-2-醇 在 palladium on activated charcoal 氢气 作用下， 生成 2-甲基-4-(2-甲基苯基)丁-3-烯-2-醇
  参考文献：
  名称：

  Vinyl hydrogen more reactive than benzyl hydrogen toward base in significantly twisted styrenes

  摘要：

  The novel example of vinyl hydrogen more reactive than benzylic hydrogen was found by treatment of a twisted styrene derivative with a strong base followed by D2O quenching. The characteristic nature of the vinyl hydrogen, which is activated by sigma-pi* orbital interaction, was apparently demonstrated. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(01)00308-2
• 作为产物：
  描述：

  2-碘代甲苯 在 吡啶 、 铜 、 potassium carbonate 作用下， 反应 50.0h， 生成 2-甲基-4-o-甲苯基丁-3-炔-2-醇
  参考文献：
  名称：

  Synthesis of ortho-substituted ethynylbenzenes

  摘要：

  DOI：

  10.1007/bf00851025

文献信息

• Synthesis of Polysubstituted 2-Iodoindenes via Iodonium-Induced Cyclization of Arylallenes
  作者：Charlotte Grandclaudon、Véronique Michelet、Patrick Y. Toullec

  DOI：10.1021/acs.orglett.5b03634

  日期：2016.2.19

  2-iodoindenes. In acetonitrile or nitromethane, electrophilic sources of iodine cations react selectively with the C2–C3 double bond of 1-arylallenes to give, after anti nucleophilic attack of the aromatic ring, 2-iodoindene products in high yields. Variations of the allenic skeletons revealed the high 5-endo selectivity and some competitive pathways of cyclization. Postfunctionalization reactions of the carbon–iodine

  开发了新的烯丙基芳烃化学选择性碘碳环化反应，导致2-碘茚的形成。在乙腈或硝基甲烷中，碘阳离子的亲电子源可与1-芳基丙二烯的C 2 -C 3双键选择性反应，在芳香环的反亲核攻击后，以高收率得到2-碘吲哚产物。变应原骨骼的变化揭示了高5内切选择性和某些竞争性环化途径。碳碘键的后官能化反应（通过Pd和Cu交叉偶联）产生了取代的茚基，收率好至极好。
• Ru(<scp>ii</scp>)-catalyzed allenylation and sequential annulation of <i>N</i>-tosylbenzamides with propargyl alcohols
  作者：Shreemoyee Kumar、Akshay M. Nair、Chandra M. R. Volla

  DOI：10.1039/d1cc01768c

  日期：——

  We hereby report Ru(II)-catalyzed C(sp2)–H allenylation of N-tosylbenzamides to access multi-substituted allenylamides. Furthermore, the allenylamides were converted to the corresponding isoquinolone derivatives via base mediated annulation. The current protocol features low catalyst loading, mild reaction conditions, high functional group compatibility and desired scalability. The unique functionality

  我们在此报告了 Ru( II ) 催化的N-甲苯磺酰苯甲酰胺的C(sp 2 )–H 烯丙基化以获得多取代的烯丙基酰胺。此外，通过碱介导的环化将丙二烯基酰胺转化为相应的异喹诺酮衍生物。目前的协议具有催化剂负载低、反应条件温和、官能团兼容性高和所需的可扩展性等特点。所提供的丙二烯的独特功能允许进一步转换以扩展协议的实用性。
• Rh(III)-Catalyzed Regioselective Annulations of 3-Arylisoxazolones and 3-Aryl-1,4,2-dioxazol-5-ones with Propargyl Alcohols: Access to 4-Arylisoquinolines and 4-Arylisoquinolones
  作者：Tong-Tong Wang、Hai-Shan Jin、Man-Man Cao、Ru-Bing Wang、Li-Ming Zhao

  DOI：10.1021/acs.orglett.1c02049

  日期：2021.8.6

  The Rh(III)-catalyzed dual directing group assisted C–H activation/annulation of 3-arylisoxazolones with propargyl alcohols has been developed, which expands the application scope of isoxazolones in organic synthesis. This protocol also worked well with 3-aryl-1,4,2-dioxazol-5-ones to produce synthetically and biologically important 4-arylisoquinolones.

  开发了Rh(III)催化的双导向基团辅助C-H活化/环化3-芳基异恶唑酮与炔丙醇，扩大了异恶唑酮在有机合成中的应用范围。该协议还适用于 3-芳基-1,4,2-二恶唑-5-酮，以生产具有合成和生物学重要性的 4-芳基异喹诺酮。
• Simple, Convenient, and Efficient Synthesis of 2-Aryl-substituted Benzo[b]furans
  作者：Yong Jiang、Botao Gao、Wenjuan Huang、Yongmin Liang、Guosheng Huang、Yongxiang Ma

  DOI：10.1080/00397910701860323

  日期：2008.12.31

  convenient, and efficient one-pot method for the preparation of benzofuran is reported. Sonogashira coupling reaction of aryl iodides with 2-methyl-3-butyn-2-ol was used as an acetylene source in the presence of Pd(PPh3)2Cl2 and CuI. Deprotection of the acetylene moiety in the same pot using a strong base and the second Sonogashira coupling/cyclization of and substituted o-iodophenols led to the formation

  摘要 报道了一种简单、方便、高效的一锅法制备苯并呋喃。在 Pd(PPh3)2Cl2 和 CuI 存在下，芳基碘化物与 2-methyl-3-butyn-2-ol 的 Sonogashira 偶联反应用作乙炔源。在同一锅中使用强碱对乙炔部分进行脱保护，并与取代的邻碘苯酚进行第二次 Sonogashira 偶联/环化，导致形成适当的苯并 [b] 呋喃。这些协议也可用于合成天然产物和吲哚。
• Palladium-catalyzed deacetonative coupling of aryl propargylic alcohols with aryl chlorides in water
  作者：Feng Chang、Yanping Liu

  DOI：10.1080/00397911.2017.1297457

  日期：2017.5.19

  propargylic alcohols with aryl chlorides has been developed. The reaction occurs smoothly in neat water with 2 mol% PdCl2 as catalyst, and various synthetically useful functional groups, including ether, aldehyde, ketone, and heterocyclics, are well tolerated. Moreover, the reaction could proceed through a consecutive Sonogashira/deacetonative process using 2-methyl-3-butyn-2-ol and aryl chlorides as coupling

  摘要 开发了一种钯催化芳炔醇与芳基氯去乙酰偶联的高效绿色工艺。该反应在纯水中以 2 mol% PdCl2 为催化剂平稳进行，各种合成有用的官能团，包括醚、醛、酮和杂环，都具有良好的耐受性。此外，该反应可以通过使用 2-methyl-3-butyn-2-ol 和芳基氯作为偶联伙伴的连续 Sonogashira/deacetonative 过程进行，以良好的收率提供对称炔烃。图形概要