2-(2-methylphenyl)tetrahydrothiophene | 57932-41-9

• 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: 2-(2-methylphenyl)tetrahydrothiophene
• 英文别名: Thiophene, tetrahydro-2-(2-methylphenyl)-；2-(2-methylphenyl)thiolane
• CAS: 57932-41-9
• 化学式: C₁₁H₁₄S
• 分子量: 178.298
• InChiKey: GPQMMZKEZGWNDD-UHFFFAOYSA-N

物化性质

• 熔点：
  165-168 °C
• 沸点：
  292.2±29.0 °C(Predicted)
• 密度：
  1.057±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  25.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-(2-methylphenyl)tetrahydrothiophene 、 双氧水 生成 2-o-Tolyl-tetrahydro-thiophene 1,1-dioxide
  参考文献：
  名称：

  NESMEYANOV N. A.; KALYAVIN V. A., ORGAN. SOEDIN. SERY. T. 2. RIGA, 1980, 333-342

  摘要：

  DOI：
• 作为产物：
  描述：

  S-benzyltetrahydrothiophenium bromide 以 乙腈 为溶剂， 以81%的产率得到2-(2-methylphenyl)tetrahydrothiophene
  参考文献：
  名称：

  从锍盐中生成硫叶立德及其反应。碱法电化学还原与MO法机理阐明的比较研究

  摘要：

  在存在和不存在苯甲醛的情况下，在乙腈中进行锍盐的阴极还原。结果与基本方法的结果进行了比较。在苯甲醛的存在下，由于 Corey-Chaykovsky 反应，电化学还原产生环氧化物，从而证实了叶立德的形成。不含苯甲醛的锍盐的电化学还原以高产率得到重排产物。相反，在没有苯甲醛的锍盐的碱处理时，由于硫叶立德的自动氧化，获得了衍生自锍盐的苄基的对称环氧化物作为主要产物。基于半经验分子轨道法得到的结果阐明了反应机理。

  DOI：

  10.1246/bcsj.76.2155

文献信息

• Hemiaminals as substrates for sulfur ylides: Direct asymmetric syntheses of functionalised pyrrolidines and piperidines
  作者：Christoforos G. Kokotos、Varinder K. Aggarwal

  DOI：10.1039/b602226j

  日期：——

  Phenyl stabilised chiral sulfur ylides react with five-membered-ring hemiaminals to give functionalised pyrrolidines directly with high enantioselectivity. The reaction can be diverted to give piperidines instead by isolation of the intermediate epoxide and treatment with TMSOTf.

  苯基稳定手性硫叶立德与五元环半缩胺反应，可直接高对映选择性地合成功能化吡咯烷。通过分离中间环氧化物并用TMSOTf处理，该反应可转化为生成哌啶。
• Catalytic cyclopropanation of electron deficient alkenes mediated by chiral and achiral sulfides: scope and limitations in reactions involving phenyldiazomethane and ethyl diazoacetate
  作者：Varinder K. Aggarwal、Helen W. Smith、George Hynd、Ray V. H. Jones、Robin Fieldhouse、Sharon E. Spey

  DOI：10.1039/b004367m

  日期：——

  Phenyldiazomethane reacts with electron deficient alkenes in the presence of catalytic amounts of transition metal catalyst [Rh2(OAc)4 was better than Cu(acac)2] and catalytic amounts of sulfide to give cyclopropanes. Pentamethylene sulfide was found to be superior to tetrahydrothiophene and the optimum solvent was toluene. Under these optimised conditions a range of enones were cyclopropanated in

  苯重氮甲烷 与电子缺乏反应 烯烃 在催化量的过渡金属存在下 催化剂[Rh 2（OAc）4优于Cu（acac）2 ]和硫化物的催化量得到环丙烷。 五甲基亚砜 被发现优于 四氢噻吩 和最佳 溶剂 曾是 甲苯。在这些优化条件下，烯酮进行了高产率的环丙烷化。循环的烯酮丙烯酸酯在此过程中不成功。衍生自手性的1,3-氧杂蒽的用途樟脑磺酰氯 在此过程中分两步进行 环丙烷具有良好的收率和很高的对映体过量（> 97％ee）。的绝对立体化学环丙烷 10被证明X射线分析立体化学诱导的来源已经合理化。这项工作扩展到包括重氮酯，是部分成功的。再次五亚甲基硫醚 被发现优于 四氢噻吩，但这次发现Rh 2（OAc）4和Cu（acac）2都同样有效。烯酮，富马酸和不饱和 硝基化合物 效果很好，但简单的丙烯酸酯和不饱和丙烯酸酯 醛类不是有效的底物。进行了对照实验，其中稳定的叶立德 分离并与不太成功的底物反应，而不饱和 醛类
• The unprecedented reaction of dimethylsulfonium methylide with Michael acceptors: synthesis of 1-substituted vinyl silanes and styrenes
  作者：Sonali M. Date、Rekha Singh、Sunil K. Ghosh

  DOI：10.1039/b509102k

  日期：——

  established leading to functionalized 1-substituted alkenes. In silyl substituted substrates (2a and 2h), where a facile Peterson-type olefination is possible from the adduct; elimination took place instead to give functionalized 1-substituted vinyl silanes. Aryl substituted Michael acceptors (2b-e, 2g and 2i-k) also underwent a similar kind of olefination to give 1-substituted styrene derivatives with moderate

  不同于通常的环丙烷化，已经建立了从二甲基s亚甲基和各种迈克尔受体的加合物进行空前消除反应的条件，从而导致官能化的1-取代的烯烃。在甲硅烷基取代的底物（2a和2h）中，加合物中可能发生容易的Peterson型烯化反应；取而代之，进行消除，得到官能化的1-取代的乙烯基硅烷。芳基取代的Michael受体（2b-e，2g和2i-k）也经历了类似的烯化反应，以中等收率得到1-取代的苯乙烯衍生物以及副产物，副产物是由二甲基ulf甲基化物和亚芳基丙二酸酯。Hammett研究表明，烯化的选择性与 随着芳基取代基变得更缺乏电子，脱甲基化增加。具有β-烷基取代基的亚炔基丙二酸酯（2f和2l）不利于烯烃化过程。将迈克尔受体和卤代烷依次加到二甲基methyl亚甲基和二甲酸钠的混合物中可进行烯化，然后在活性次甲基上进行烷基化。通过对一些sulf甲基化物的研究已经确定了机械途径。
• Generation of Sulfur Ylides from Sulfonium Salts and Their Reactions. Comparative Study of Electrochemical Reduction with the Base Method and Mechanism Elucidation by the MO Method
  作者：Yuichi Okazaki、Fumio Ando、Jugo Koketsu

  DOI：10.1246/bcsj.76.2155

  日期：2003.11

  The cathodic reduction of sulfonium salts in acetonitrile in the presence and absence of benzaldehyde was carried out. Results were compared with results of the base method. In the presence of benzaldehyde, the electrochemical reduction gave epoxides as a result of the Corey–Chaykovsky reaction, thus confirming ylide formation. The electrochemical reduction of sulfonium salts without benzaldehyde yielded

  在存在和不存在苯甲醛的情况下，在乙腈中进行锍盐的阴极还原。结果与基本方法的结果进行了比较。在苯甲醛的存在下，由于 Corey-Chaykovsky 反应，电化学还原产生环氧化物，从而证实了叶立德的形成。不含苯甲醛的锍盐的电化学还原以高产率得到重排产物。相反，在没有苯甲醛的锍盐的碱处理时，由于硫叶立德的自动氧化，获得了衍生自锍盐的苄基的对称环氧化物作为主要产物。基于半经验分子轨道法得到的结果阐明了反应机理。
• An Effective Dual Copper- and Sulfide-Catalytic System for the Epoxidation of Aldehydes with Phenyldiazomethane
  作者：Ana Pereira、Carmen Martín、Celia Maya、Tomás R. Belderrain、Pedro J. Pérez

  DOI：10.1002/adsc.201300606

  日期：2013.10.11

  AbstractEpoxides have been obtained from aldehydes and phenyldiazomethane using catalytic amounts of both the copper homoscorpionate complexes TpxCuL (Tpx=homoscorpionate ligand; L=acetonitrile or tetrahydrofuran, THF) and dimethyl sulfide (SMe2) in high yields and diasteroselectivities, and with activities higher (TOF=46 h−1) than those already known with rhodium‐ or copper‐based catalysts. Among the copper(I) homoscorpionate complexes tested, TpBr3Cu(NCCH3) showed the highest catalytic activity under mild conditions. The catalytic activity is controlled by electronic effects induced by the Tpx ligand as well as by the stability of the TpxCu(SR2) adducts. Indeed, in the case of TpMs as ligand, the TpMsCu(THT) (THT=tetrahydrothiophene) and TpMsCu(SMe2) species could be isolated as very stable crystalline solids, the molecular structure of the former being confirmed by single‐crystal X‐ray diffraction analysis. The in situ generation of PhCHN2 from benzaldehyde tosylhydrazone sodium salt at 60 °C in methyl tert‐butyl ether as solvent and TpMsCu(THF) as the catalyst also showed high catalytic activities, improving those already reported with copper‐based catalysts.magnified image