Tert-butyl-dimethyl-(2,3,5-trimethyl-4-phenylsulfanyl-6-prop-2-enylphenoxy)silane | 1026485-13-1

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: Tert-butyl-dimethyl-(2,3,5-trimethyl-4-phenylsulfanyl-6-prop-2-enylphenoxy)silane
• CAS: 1026485-13-1
• 化学式: C₂₄H₃₄OSSi
• 分子量: 398.685
• InChiKey: MWYLIWKXMUAYNW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.88
• 重原子数：
  27
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  34.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  Tert-butyl-dimethyl-(2,3,5-trimethyl-4-phenylsulfanyl-6-prop-2-enylphenoxy)silane 在 四丁基氟化铵 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 5.5h， 生成 4-(Benzenesulfinyl)-2,3,5-trimethyl-6-prop-2-enylphenol
  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：

  1-(叔丁基二甲基硅氧基)-1-甲氧基乙烯 以 四氢呋喃 、 乙醚 、 乙腈 为溶剂， 反应 3.0h， 生成 Tert-butyl-dimethyl-(2,3,5-trimethyl-4-phenylsulfanyl-6-prop-2-enylphenoxy)silane
  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

• 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.