3-silyl>-3-methylbutan-1-ol | 170474-50-7

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 3-silyl>-3-methylbutan-1-ol
• 英文别名: 3-[Dimethyl(2-trimethylsilylethynyl)silyl]-3-methylbutan-1-ol
• CAS: 170474-50-7
• 化学式: C₁₂H₂₆OSi₂
• 分子量: 242.509
• InChiKey: PQERBQIAQJJQQS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.28
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3-silyl>-3-methylbutan-1-ol 在 2,6-二甲基吡啶 、 盐酸 、 tris-(dibenzylideneacetone)dipalladium(0) 、 N-溴代丁二酰亚胺(NBS) 、 copper(l) iodide 、 正丁基锂 、 三氯化铝 、 杀鼠酮 、 三甲基铝 、 sodium methylate 、 silver trifluoroacetate 、 lithium iodide 作用下， 以 甲醇 、 乙醇 、 二氯甲烷 、 二甲基亚砜 、 丙酮 为溶剂， 反应 55.5h， 生成
  参考文献：
  名称：

  Oligosaccharide Analogues of Polysaccharides, Part 16, Cross-Coupling of Partially Protected Dialkynyl Monosaccharides

  摘要：

  The dependency of the cross-coupling of orthogonally C-protected dialkynyl monosaccharides on the nature of the coupling partners has been studied, The required dialkyne 5 was synthesized from levoglucosan in six steps and 39% overall yield and transformed into 7 10, 12, 13, and 14 by orthogonal C-deprotection and bromination (Scheme 1). Optimization of the conditions of their cross-coupling to 16 showed that yields were higher for the coupling of the propargylic bromoalkyne 10 than for the homopropargylic bromoalkyne 14 (Scheme 2). Deprotection of 16 gave the nano-crystalline dimer 20. To obtain more highly crystalline products, the monomers 7 and 13 were coupled with 1-iodo-4-nitrobenzene to the arylated monomers 21 and 24 (Scheme 3). The 4-NO2C6H4, substituent lowered the yield of the dimerizations to the mono- and diarylated dimers 26-28 (Scheme 4) but had no effect on crystallinity.

  DOI：

  10.1002/(sici)1522-2675(19990210)82:2<143::aid-hlca143>3.0.co;2-0
• 作为产物：
  描述：

  1-silyl>-2-(trimethylsilyl)ethyne 在 LiDBB 作用下， 以 四氢呋喃 为溶剂， 反应 1.08h， 生成 3-silyl>-3-methylbutan-1-ol
  参考文献：
  名称：

  多糖的寡糖类似物。第3部分。炔烃的新保护基团：正交保护的二炔

  摘要：

  通过在质子溶剂中（4）用碱处理，或在暴露OH基团之后，在质子惰性溶剂中用催化量的碱（5和8）处理3型二元炔（方案1）的区域选择性脱保护。在ME 3的Si-保护12（方案2）是惰性的催化丁基锂/ THF其转化11到9，而ķ 2 CO 3 / MeOH中转化的两个10到9，和12到13，表明需要更受阻的（羟丙基）甲硅烷基取代基。17–19（方案3）中的碳负离子的C-甲硅烷基化反应生成15的碳负离子导致20-22，但以合理的收率仅获得22。因此，关键中间体27是通过逆布鲁克重排23制备的，该逆向布鲁克重排是通过将羟基硫化物16与15进行甲硅烷基化而制得的。OH基团的27是受保护的，得到{[ d imethyl（氧）p丙基]二甲基甲硅烷}乙炔（DOPSA的）21，28和29。正交保护的乙炔20–22、28和29被去三甲基甲硅烷基化为新的单保护的乙炔合成子30–34。正交的保护范围是由dialkyn

  DOI：

  10.1002/hlca.19950780319

文献信息

• Oligosaccharide Analogues of Polysaccharides. Part 3. A new protecting group for alkynes: Orthogonally protected dialkynes
  作者：Chengzhi Cai、Andrea Vasella

  DOI：10.1002/hlca.19950780319

  日期：1995.5.10

  hydroxysulfide 16 with 15. The OH group of 27 was protected to yield the [dimethyl(oxy)propyl]dimethylsilyl}acetylenes (DOPSA's) 21, 28, and 29. The orthogonally protected acetylenes 20–22, 28, and 29 were de-trimethylsilylated to the new monoprotected acetylene synthons 30–34. The scope of the orthogonal protection was checked by regioselective deprotection of the dialkynes 39–42 (Scheme 4), prepared by alkylation

  通过在质子溶剂中（4）用碱处理，或在暴露OH基团之后，在质子惰性溶剂中用催化量的碱（5和8）处理3型二元炔（方案1）的区域选择性脱保护。在ME 3的Si-保护12（方案2）是惰性的催化丁基锂/ THF其转化11到9，而ķ 2 CO 3 / MeOH中转化的两个10到9，和12到13，表明需要更受阻的（羟丙基）甲硅烷基取代基。17–19（方案3）中的碳负离子的C-甲硅烷基化反应生成15的碳负离子导致20-22，但以合理的收率仅获得22。因此，关键中间体27是通过逆布鲁克重排23制备的，该逆向布鲁克重排是通过将羟基硫化物16与15进行甲硅烷基化而制得的。OH基团的27是受保护的，得到[ d imethyl（氧）p丙基]二甲基甲硅烷}乙炔（DOPSA的）21，28和29。正交保护的乙炔20–22、28和29被去三甲基甲硅烷基化为新的单保护的乙炔合成子30–34。正交的保护范围是由dialkyn
• Oligosaccharide Analogues of Polysaccharides, Part 16, Cross-Coupling of Partially Protected Dialkynyl Monosaccharides
  作者：Tanja Verena Bohner、Renaud Beaudegnies、Andrea Vasella

  DOI：10.1002/(sici)1522-2675(19990210)82:2<143::aid-hlca143>3.0.co;2-0

  日期：1999.2.10

  The dependency of the cross-coupling of orthogonally C-protected dialkynyl monosaccharides on the nature of the coupling partners has been studied, The required dialkyne 5 was synthesized from levoglucosan in six steps and 39% overall yield and transformed into 7 10, 12, 13, and 14 by orthogonal C-deprotection and bromination (Scheme 1). Optimization of the conditions of their cross-coupling to 16 showed that yields were higher for the coupling of the propargylic bromoalkyne 10 than for the homopropargylic bromoalkyne 14 (Scheme 2). Deprotection of 16 gave the nano-crystalline dimer 20. To obtain more highly crystalline products, the monomers 7 and 13 were coupled with 1-iodo-4-nitrobenzene to the arylated monomers 21 and 24 (Scheme 3). The 4-NO2C6H4, substituent lowered the yield of the dimerizations to the mono- and diarylated dimers 26-28 (Scheme 4) but had no effect on crystallinity.