2-benzhydryl-5-methylthiophene | 337471-92-8

• 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-benzhydryl-5-methylthiophene
• 英文别名: 2-(diphenylmethyl)-5-methylthiophene
• CAS: 337471-92-8
• 化学式: C₁₈H₁₆S
• mdl: MFCD00469004
• 分子量: 264.391
• InChiKey: FMVKCNOAGUSJQW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  二苯甲酮对家苯磺酰腙 在 dipotassium hydrogenphosphate 、 (4,4'-di-tert-butyl-2,2'-dipyridyl)-bis-(2-phenylpyridine(-1H))-iridium(III) hexafluorophosphate 、 scandium tris(trifluoromethanesulfonate) 作用下， 以 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 36.0h， 生成 2-benzhydryl-5-methylthiophene
  参考文献：
  名称：

  Visible-Light-Catalyzed in Situ Denitrogenative Sulfonylation of Sulfonylhydrazones

  摘要：

  DOI：

  10.1021/acs.orglett.1c02369

文献信息

• Friedel-Crafts Alkylation with Carbenium Ions Generated by Electrochemical Oxidation of Stannylmethyl Ethers
  作者：Anna Lielpetere、Aigars Jirgensons

  DOI：10.1002/ejoc.202000568

  日期：2020.8.9

  Friedel–Crafts alkylation of electron rich arenes can be achieved by stabilized carbenium ions which are generated by single cell anodic oxidation of stannylmethyl ethers at low potential. The use of NaHCO3 as an additive ensures close‐to‐neutral conditions enabling the reaction with arenes bearing acid‐sensitive groups such as O‐TBS, O‐Tr, O‐MOM, O‐THP.

  富电子芳烃的Friedel-Crafts烷基化可通过稳定的碳氧离子实现，该离子由低电位的苯乙烯甲基甲醚的单细胞阳极氧化产生。使用碳酸氢钠的3作为添加剂确保贴近中性条件使得能够与芳烃带有酸敏感基团，如反应Ó -TBS，ö -Tr，ö -MOM，ö -THP。
• CuBr2-catalyzed alkylation of furans with benzyl alcohols and benzaldehydes. Domino reactions including this alkylation as a key step
  作者：Anton S. Makarov、Anna E. Kekhvaeva、Christopher J.J. Hall、Daniel R. Price、Igor V. Trushkov、Maxim G. Uchuskin

  DOI：10.1016/j.tet.2017.10.054

  日期：2017.12

  CuBr2-catalyzed alkylation of furans with a broad scope of benzyl alcohols and benzaldehydes is reported. Reaction proceeds efficiently under mild reaction conditions requiring no inert atmosphere or other precautions. Moreover, it is shown that CuBr2 catalyzes domino reactions of furans with benzyl alcohols or benzaldehydes bearing a nucleophilic moiety in the ortho-position. These protocols offer a

  据报道，CuBr 2催化的呋喃与范围广泛的苄醇和苯甲醛的烷基化。反应在温和的反应条件下有效进行，不需要惰性气氛或其他预防措施。此外，表明CuBr 2催化呋喃与在邻位带有亲核部分的苯甲醇或苯甲醛的多米诺反应。这些协议为从易于获得的呋喃中密集取代的杂环基序提供了一种实用的方法。
• PdCl2-catalyzed efficient allylation and benzylation of heteroarenes under ligand, base/acid, and additive-free conditions
  作者：Feng-Quan Yuan、Lian-Xun Gao、Fu-She Han

  DOI：10.1039/c1cc10953g

  日期：——

  We present a PdCl2-catalyzed protocol for highly efficient allylation and benzylation of a rich variety of N-, O-, and S-containing heteroarenes under base/acid, additive, and ligand-free conditions. The method represents the very few examples for simple, universally applicable, clean, and atom-efficient functionalization of heteroarenes.

  我们提出了一种PdCl2催化的方案，可以在无碱/酸、添加剂和配体的条件下，对多种富含N、O和S的杂环进行高效的烯丙基化和苄基化。该方法是少数几个能够实现简单、普遍适用、清洁和原子高效的杂环功能化的例子之一。
• Commercially available simple ionic liquids-promoted dehydrative carbon–carbon bond-forming reaction of diarylmethanols and triarylmethanols with pyrroles, thiophene, furan and indoles
  作者：Kazumasa Funabiki、Takuya Komeda、Kouhei Nishikawa、Kentaro Yamada、Yasuhiro Kubota、Masaki Matsui

  DOI：10.1016/j.tet.2014.10.004

  日期：2014.12

  bond-forming reaction of a variety of diarylmethanols and triarylmethanols with π-rich heteroaromatics, such as pyrroles, indole, furan, and thiophene without ring-opening and polymerization to give the corresponding not only 2-substituted pyrroles, furan, and thiophene but also 3-substituted indoles in good to excellent yields with moderate to excellent regioselectivities. These dehydrative C–C bond

  两种市售的简单离子液体，即三氟甲磺酸1-乙基-3-甲基咪唑鎓和三氟甲磺酸1-乙基-2,3-二甲基咪唑鎓，可有效促进多种溶剂的无溶剂脱水碳-碳（CC）键形成反应。二芳基甲醇和三芳基甲醇，带有富含π的杂芳族化合物，例如吡咯，吲哚，呋喃和噻吩，不进行开环和聚合反应，不仅可以得到相应的2-取代的吡咯，呋喃和噻吩，而且还可以很好地制得3-取代的吲哚具有中等至优异的区域选择性的产率。这些醇类的脱水C–C键形成反应具有几个优点，例如使用化学计量的π富杂芳族化合物和离子液体，水是唯一的副产物，
• Electrochemically enhanced deoxygenative cross-coupling of aryl ketones with heteroarenes through <i>in situ</i> generated benzyl carbocations
  作者：Yiyi Zhang、Jianxin Hou、Hui Yang、Shengdong Wang、Kedong Yuan

  DOI：10.1039/d2ob02065c

  日期：——

  transformation of CO bonds through a multistep reaction pathway in one pot. Electrolysis of the acidic reaction mixture significantly improved carbonyl reduction and thus facilitated the generation of benzyl carbocations, which show high reactivity towards electron-rich heteroarenes for C–C bond formation.

  三氟甲磺酸/硅烷作为协同还原剂，可以通过多步反应途径在一锅中方便地转化 C O 键。酸性反应混合物的电解显着改善了羰基还原，从而促进了苄基碳阳离子的产生，其对富电子杂芳烃具有高反应性，可形成 C-C 键。