2,3,5,6-Tetramethyl-4-methylsulfinylphenol | 169216-74-4

• 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: 2,3,5,6-Tetramethyl-4-methylsulfinylphenol
• CAS: 169216-74-4
• 化学式: C₁₁H₁₆O₂S
• 分子量: 212.313
• InChiKey: NSJFNDOMJMZHAM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  56.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,3,5,6-Tetramethyl-4-methylsulfinylphenol 在 碳酸氢钠 、 三氟乙酸酐 作用下， 生成 杜醌
  参考文献：
  名称：

  Novel ipso-Substitution of p-Sulfinylphenols through the Pummerer-Type Reaction:  A Selective and Efficient Synthesis of p-Quinones and Protected p-Dihydroquinones

  摘要：

  The treatment of p-sulfinylphenols 3a-q with trifluoroacetic anhydride caused a Pummerer-type reaction on aromatic rings and concomitant desulfurization to give mixtures of the corresponding p-dihydroquinones 9 and p-quinones 10, which were subsequently oxidized under mild conditions to provide high yields of p-quinones 10. On the other hand, the treatment of p-(phenylsulfinyl)-phenyl ethers 6 with trifluoroacetic anhydride in the presence of styrene caused the direct ipso-substitution of the sulfinyl groups into trifluoroacetoxy groups, giving the protected dihydroquinones 14 in high yields. Both types of reactions were generally completed below room temperature within 1 h and compatible with various functional groups such as the allyl, carbonyl, ester, amide, and silyloxy groups. The preparation of the p-sulfinylphenols 3 and the silyl ethers 6 is also described through p-specific thiocyanation of phenols followed by the Grignard reaction and oxidation.

  DOI：

  10.1021/jo970418o
• 作为产物：
  描述：

  甲烷亚磺酰氯化物 、 2,3,5,6-四甲基苯酚 在 三氯化铝 作用下， 以 二氯甲烷 为溶剂， 以74%的产率得到2,3,5,6-Tetramethyl-4-methylsulfinylphenol
  参考文献：
  名称：

  Novel ipso-Substitution of p-Sulfinylphenols through the Pummerer-Type Reaction:  A Selective and Efficient Synthesis of p-Quinones and Protected p-Dihydroquinones

  摘要：

  The treatment of p-sulfinylphenols 3a-q with trifluoroacetic anhydride caused a Pummerer-type reaction on aromatic rings and concomitant desulfurization to give mixtures of the corresponding p-dihydroquinones 9 and p-quinones 10, which were subsequently oxidized under mild conditions to provide high yields of p-quinones 10. On the other hand, the treatment of p-(phenylsulfinyl)-phenyl ethers 6 with trifluoroacetic anhydride in the presence of styrene caused the direct ipso-substitution of the sulfinyl groups into trifluoroacetoxy groups, giving the protected dihydroquinones 14 in high yields. Both types of reactions were generally completed below room temperature within 1 h and compatible with various functional groups such as the allyl, carbonyl, ester, amide, and silyloxy groups. The preparation of the p-sulfinylphenols 3 and the silyl ethers 6 is also described through p-specific thiocyanation of phenols followed by the Grignard reaction and oxidation.

  DOI：

  10.1021/jo970418o

文献信息

• A novel efficient sulfenylation method using quinone mono-O,S-acetals under mild conditions
  作者：Masato Matsugi、Kentoku Gotanda、Kenji Murata、Yasuyuki Kita

  DOI：10.1039/a702912h

  日期：——

  A novel method for sulfenylation induced by aromatization of quinone mono-O,S-acetals is described.

  一种通过醌单-O,S-乙缩醛芳构化诱导硫醚化的新型方法被报道出来。
• Facile and Efficient Sulfenylation Method Using Quinone Mono-<i>O,S</i>-Acetals under Mild Conditions
  作者：Masato Matsugi、Kenji Murata、Kentoku Gotanda、Hisanori Nambu、Gopinathan Anilkumar、Keita Matsumoto、Yasuyuki Kita

  DOI：10.1021/jo001710q

  日期：2001.4.1

  A novel sulfenylation method induced by aromatization of quinone mono-O,S-acetals is described. These sulfenylation reagents readily react with silyl enolethers or electron rich aromatic compounds to give sulfenylation products under mild conditions. In particular, O,S-acetal 2j, which possesses a pentafluorophenylthio function, is the most effective reagent from the standpoint of the adaptability for various substrates.
• Isolation of the Quinone MonoO,S-Acetal Intermediates of the Aromatic Pummerer-Type Rearrangement ofp-Sulfinylphenols with 1-Ethoxyvinyl Esters
  作者：Yasuyuki Kita、Yoshifumi Tekeda、Masato Matsugi、Kiyosei Iio、Kentoku Gotanda、Kenji Murata、Shuji Akai

  DOI：10.1002/anie.199715291

  日期：1997.8.4
• Novel <i>ipso</i>-Substitution of <i>p</i>-Sulfinylphenols through the Pummerer-Type Reaction:  A Selective and Efficient Synthesis of <i>p</i>-Quinones and Protected <i>p</i>-Dihydroquinones
  作者：Shuji Akai、Yoshifumi Takeda、Kiyosei Iio、Kenji Takahashi、Nobuhisa Fukuda、Yasuyuki Kita

  DOI：10.1021/jo970418o

  日期：1997.8.1

  The treatment of p-sulfinylphenols 3a-q with trifluoroacetic anhydride caused a Pummerer-type reaction on aromatic rings and concomitant desulfurization to give mixtures of the corresponding p-dihydroquinones 9 and p-quinones 10, which were subsequently oxidized under mild conditions to provide high yields of p-quinones 10. On the other hand, the treatment of p-(phenylsulfinyl)-phenyl ethers 6 with trifluoroacetic anhydride in the presence of styrene caused the direct ipso-substitution of the sulfinyl groups into trifluoroacetoxy groups, giving the protected dihydroquinones 14 in high yields. Both types of reactions were generally completed below room temperature within 1 h and compatible with various functional groups such as the allyl, carbonyl, ester, amide, and silyloxy groups. The preparation of the p-sulfinylphenols 3 and the silyl ethers 6 is also described through p-specific thiocyanation of phenols followed by the Grignard reaction and oxidation.