{2-[1,2-Dimethyl-1-(toluene-4-sulfonyl)-propyl]-benzyl}-trimethyl-silane | 160929-89-5

• 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-[1,2-Dimethyl-1-(toluene-4-sulfonyl)-propyl]-benzyl}-trimethyl-silane
• 英文别名: Trimethyl-[[2-[3-methyl-2-(4-methylphenyl)sulfonylbutan-2-yl]phenyl]methyl]silane；trimethyl-[[2-[3-methyl-2-(4-methylphenyl)sulfonylbutan-2-yl]phenyl]methyl]silane
• CAS: 160929-89-5
• 化学式: C₂₂H₃₂O₂SSi
• 分子量: 388.646
• InChiKey: DZNUOBUGSUSHDS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.76
• 重原子数：
  26
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  42.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  {2-[1,2-Dimethyl-1-(toluene-4-sulfonyl)-propyl]-benzyl}-trimethyl-silane 、 富马酸二甲酯 在 四丁基氟化铵 作用下， 以 乙腈 为溶剂， 反应 0.5h， 生成 、
  参考文献：
  名称：

  Synthesis and Conversions of Substituted o-[(Trimethylsilyl)methyl]benzyl p-Tolyl Sulfones to o-Quinodimethanes and Products Thereof

  摘要：

  Use of o-[(trimethylsilyl)methyl]benzyl p-tolyl sulfone (3) for synthesis and cycloaddition of substituted o-quinodimethanes has been investigated. Sulfone 3 is prepared from 2-methylbenzyl alcohol (4) by reactions with n-BuLi and chlorotrimethylsilane to form o-[(trimethylsilyl)methyl]benzyl alcohol (7) which phosphorus tribromide converts to o-[(trimethylsilyl)methyl]benzyl bromide (8). Displacement of 8 with sodium p-toluenesulfinate yields 3. Sulfone 3 is alkylated at its alpha-sulfonyl position upon deprotonation with n-BuLi followed by methyl iodide, ethyl, butyl, allyl, and benzyl bromides, and 5-bromo-1-pentene, respectively. Acylations occur using acid chlorides. Dialkylation occurs upon further reaction with n-BuLi and an alkyl halide. 1,4-Eliminations of alpha,alpha-dialkyl sulfones 11 with tetrabutylammonium fluoride (TBAF) give alpha,alpha-dialkyl-o-quinodimethanes (29); 3 is therefore a synthon for the o-quinadimethane-alpha,alpha-dianion (34). o-Quinodimethanes 29 undergo (1) cycloaddition with acrylonitrile, acrylate esters, and alkyl fumarates to yield 1,1-disubstituted-tetrahydronaphthalenes (30) and (2) 1,5-sigmatropic rearrangements of hydrogen to give styrenes (32). The stereochemistries of the various cycloadditions reveal significant mechanism information.

  DOI：

  10.1021/jo970592c
• 作为产物：
  描述：

  2-[(trimethylsilyl)methyl]benzyl alcohol 在 正丁基锂 、 三溴化磷 作用下， 以 四氢呋喃 为溶剂， 生成 {2-[1,2-Dimethyl-1-(toluene-4-sulfonyl)-propyl]-benzyl}-trimethyl-silane
  参考文献：
  名称：

  取代的邻[[（三甲基甲硅烷基）甲基]苄基对甲苯砜：用于制备邻喹啉甲烷环加成物的实用试剂

  摘要：

  已经开发了合成和将甲硅烷基砜1，4-消除为邻喹啉甲烷的有效方法。

  DOI：

  10.1016/s0040-4039(00)78329-8

文献信息

• Substituted o-[(Trimethylsilyl)methyl]benzyl p-tolyl sulfones: Practical reagents for preparing cycloadducts of o-quinodimethanes
  作者：Brian D. Lenihan、Harold Shechter

  DOI：10.1016/s0040-4039(00)78329-8

  日期：1994.10

  Effective methods for synthesis and 1,4-elimination of silyl sulfones to o-quinodimethanes have been developed.

  已经开发了合成和将甲硅烷基砜1，4-消除为邻喹啉甲烷的有效方法。
• Synthesis and Conversions of Substituted <i>o</i>-[(Trimethylsilyl)methyl]benzyl <i>p</i>-Tolyl Sulfones to <i>o</i>-Quinodimethanes and Products Thereof
  作者：Brian D. Lenihan、Harold Shechter

  DOI：10.1021/jo970592c

  日期：1998.4.1

  Use of o-[(trimethylsilyl)methyl]benzyl p-tolyl sulfone (3) for synthesis and cycloaddition of substituted o-quinodimethanes has been investigated. Sulfone 3 is prepared from 2-methylbenzyl alcohol (4) by reactions with n-BuLi and chlorotrimethylsilane to form o-[(trimethylsilyl)methyl]benzyl alcohol (7) which phosphorus tribromide converts to o-[(trimethylsilyl)methyl]benzyl bromide (8). Displacement of 8 with sodium p-toluenesulfinate yields 3. Sulfone 3 is alkylated at its alpha-sulfonyl position upon deprotonation with n-BuLi followed by methyl iodide, ethyl, butyl, allyl, and benzyl bromides, and 5-bromo-1-pentene, respectively. Acylations occur using acid chlorides. Dialkylation occurs upon further reaction with n-BuLi and an alkyl halide. 1,4-Eliminations of alpha,alpha-dialkyl sulfones 11 with tetrabutylammonium fluoride (TBAF) give alpha,alpha-dialkyl-o-quinodimethanes (29); 3 is therefore a synthon for the o-quinadimethane-alpha,alpha-dianion (34). o-Quinodimethanes 29 undergo (1) cycloaddition with acrylonitrile, acrylate esters, and alkyl fumarates to yield 1,1-disubstituted-tetrahydronaphthalenes (30) and (2) 1,5-sigmatropic rearrangements of hydrogen to give styrenes (32). The stereochemistries of the various cycloadditions reveal significant mechanism information.