3-(2-methylphenyl)prop-2-ynoic acid | 7515-27-7

• 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: 3-(2-methylphenyl)prop-2-ynoic acid
• 英文别名: 3-(o-tolyl)propiolic acid；2-methylphenylpropiolic acid；o-tolylpropynoic acid；o-methylphenylpropiolic acid；o-toluopropynic acid
• CAS: 7515-27-7
• 化学式: C₁₀H₈O₂
• 分子量: 160.172
• InChiKey: VRKGBSGNFQZBLU-UHFFFAOYSA-N

物化性质

• 熔点：
  94-95 °C(Solv: benzene (71-43-2); ligroine (8032-32-4))
• 沸点：
  319.1±25.0 °C(Predicted)
• 密度：
  1.20±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.1
• 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：

  3-(2-methylphenyl)prop-2-ynoic acid 在 1,3-二碘-5,5-二甲基海因 、 silver(I) acetate 、 氟化氢吡啶 作用下， 以 乙腈 为溶剂， 反应 16.0h， 以72%的产率得到1-(1-fluoro-2,2-diiodovinyl)-2-methylbenzene
  参考文献：
  名称：

  Silver-Mediated Decarboxylative Fluorodiiodination of Alkynoic Acids: Synthesis of Regio- and Stereoselective Fluoroalkenes

  摘要：

  A variety of arylalkynoic acids reacted with 1,3-diiodo-5,5-dimethylhydantoin and HF.pyridine in the presence of AgOAc to provide the corresponding 1-fluoro-2,2-diiodovinylarenes in good yields and high regioselectivity. In addition, Pd-catalyzed cross-coupling reaction of 1-fluoro-2,2-diiodovinylarenes afforded diaryl coupling products in the Suzuki reaction and monoaryl coupling products with high stereo-selectivity in the Hiyama reaction. It was found that C-F-activated borylation of fluoroalkenes using Pd catalyst afforded the vinylboranes with good yields.

  DOI：

  10.1021/acs.orglett.9b00597
• 作为产物：
  描述：

  (2RS,3SR)-2,3-dibromo-3-o-tolyl-propionic acid 在 氢氧化钾 作用下， 生成 3-(2-methylphenyl)prop-2-ynoic acid
  参考文献：
  名称：

  Baddar et al., Journal of the Chemical Society, 1955, p. 461,464

  摘要：

  DOI：

文献信息

• Metal-Free Decarboxylative Trichlorination of Alkynyl Carboxylic Acids: Synthesis of Trichloromethyl Ketones
  作者：Aravindan Jayaraman、Eunjeong Cho、Francis Mariaraj Irudayanathan、Jimin Kim、Sunwoo Lee

  DOI：10.1002/adsc.201701116

  日期：2018.1.4

  arylpropiolic acids and trichloroisocyanuric acid (TCCA). The reaction was performed in the presence of water at room temperature, and the desired products were obtained in good yields. The reaction showed good functional group tolerance towards halide, cyano, nitro, ketone, ester and aldehyde groups. In addition, the 2,2,2‐trichloroacetophenone derivatives were readily transformed into esters, amides,

  2,2,2-三氯苯乙酮衍生物是通过芳基丙酸和三氯异氰尿酸（TCCA）的脱羧三氯化反应合成的。该反应在室温下在水的存在下进行，并且以良好的产率获得了所需的产物。反应显示出对卤化物，氰基，硝基，酮，酯和醛基的良好的官能团耐受性。此外，2,2,2-三氯苯乙酮衍生物很容易转化为酯，酰胺和酰肼。基于H 2 18 O（水18 O）的实验，我们提出了阳离子反应途径作为机理，并提出了两种不同的途径来生产芳基和烷基取代的丙酸。
• Access to Polycyclic Indol(en)ines <i>via</i> <scp>Base‐Catalyzed</scp> Intramolecular Dearomatizing <scp>3‐Alkenylation</scp> of Alkynyl Indoles
  作者：Lin Lu、Zuoliang Zheng、Yongjie Yang、Bo Liu、Biaolin Yin

  DOI：10.1002/cjoc.202100164

  日期：2021.8

  Polycyclic indolines and indolenines were synthesized via base-catalyzed intramolecular dearomatizing 3-alkenylation reactions of alkynyl indoles 1 at room temperature. The base enhanced the nucleophilicity of the carbon at the 3-position of the indole moiety, facilitating an exclusive 5-exo-dig cyclization reaction with the alkyne to form spiroindolenines 2. The imine functionality of 2 could undergo

  多环的二氢吲哚和假吲哚合成通过在室温下炔基吲哚1的碱催化的分子内dearomatizing 3-烯基化反应。碱增强了吲哚部分 3 位碳的亲核性，促进与炔烃的独家 5- exo- dig 环化反应形成螺吲哚 2。 2 的亚胺官能团可以进行原位亲核加成形成螺吲哚3 当 R 是氨基甲酰基或还原形成螺二氢吲哚时 4 当 R 是 H 时。
• Palladium-catalyzed decarboxylative aminocarbonylation with alkynoic acid and tertiary amine for the synthesis of alkynyl amide
  作者：Muhammad Aliyu Idris、Myungjin Kim、Jeung Gon Kim、Sunwoo Lee

  DOI：10.1016/j.tet.2019.04.030

  日期：2019.8

  We developed a method for the synthesis of alkynyl amides via the carbonylation of alkynoic acids and C-N activation of tertiary amines. The reaction of alkynoic acid and tertiary amine with carbon monoxide using a palladium catalyst in the presence of oxygen, KI, and K3PO4, gave the desired alkynyl amides in good yields.

  我们开发了一种通过炔酸的羰基化和叔胺的CN活化合成炔基酰胺的方法。在氧，KI和K 3 PO 4的存在下，使用钯催化剂使炔酸和叔胺与一氧化碳反应，以良好的收率得到所需的炔基酰胺。
• One-pot preparation of 4-aryl-3-bromocoumarins from 4-aryl-2-propynoic acids with diaryliodonium salts, TBAB, and Na₂S₂O₈
  作者：Teppei Sasaki、Katsuhiko Moriyama、Hideo Togo

  DOI：10.3762/bjoc.14.22

  日期：——

  Various 4-aryl-3-bromocoumarins were smoothly obtained in moderate yields in one pot by treating 3-aryl-2-propynoic acids with diaryliodonium triflates and K2CO3 in the presence of CuCl, followed by the reaction with tetrabutylammonium bromide (TBAB) and Na2S2O8. The obtained 3-bromo-4-phenylcoumarin was transformed into 4-phenylcoumarin derivatives bearing C-H, C-S, C-N, and C-C bonds at 3-position

  一锅中以中等收率顺利获得各种4-芳基-3-溴香豆素，方法是在CuCl的存在下用二芳基碘鎓三氟甲磺酸和K2CO3处理3-芳基-2-丙酸，然后与四丁基溴化铵（TBAB）和Na2S2O8反应。将获得的3-溴-4-苯基香豆素转化为在3-位带有CH，CS，CN和CC键的4-苯基香豆素衍生物。
• Silver-catalyzed Double Decarboxylative Radical Alkynylation/Annulation of Arylpropiolic Acids with α-keto Acids: Access to Ynones and Flavones under Mild Conditions
  作者：Mengting Meng、Guofang Wang、Liangfeng Yang、Kai Cheng、Chenze Qi

  DOI：10.1002/adsc.201701469

  日期：2018.3.20

  Ynones are privileged building blocks in various organic syntheses of heterocyclic derivatives due to their multifunctional nature, and flavones are an important class of natural products with a wide range of biological activities. We describe the catalytic double decarboxylative alkynylation of arylpropiolic acids with α‐keto acids. With Ag(I)/persulfate as the catalysis system, the valuable ynones

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