2,6-二甲基-4-庚炔-2-醇 | 1020254-96-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2,6-二甲基-4-庚炔-2-醇
• 英文名称: 2,6-dimethyl-4-heptyn-2-ol
• 英文别名: 2,6-Dimethylhept-4-yn-2-ol；2,6-dimethylhept-4-yn-2-ol
• CAS: 1020254-96-9
• 化学式: C₉H₁₆O
• 分子量: 140.225
• InChiKey: VDFIFFNDCCMFAQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 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：

  2-(4-bromophenyl)-2-methyl-1,3-dioxane 、 2,6-二甲基-4-庚炔-2-醇 在 tris-(dibenzylideneacetone)dipalladium(0) 氢氧化钾 、 N,N-二甲基乙酰胺 作用下， 以 正己烷 、 甲苯 为溶剂， 反应 4.0h， 以62%的产率得到2-methyl-2-[4-{1-(1-methylethyl)-1,2-propadienyl}phenyl]-1,3-dioxane
  参考文献：
  名称：

  Synthesis of Arylallenes by Palladium-Catalyzed Retro-Propargylation of Homopropargyl Alcohols

  摘要：

  Treatment of tertiary homopropargyl alcohol with aryl halide under palladium catalysis provided arylallenes regioselectively. The reaction includes retropropargylation, which proceeds in a concerted fashion via a cyclic transition state and transfers the stereochemistry of homopropargyl alcohols through C-C bond cleavage. The present method enables the use of homopropargyl alcohols as allenylmetal equivalents.

  DOI：

  10.1021/ja800986m
• 作为产物：
  描述：

  甲基环氧丙烷 、 1-lithio-3-methyl-1-butyne 生成 2,6-二甲基-4-庚炔-2-醇
  参考文献：
  名称：

  Synthesis of Arylallenes by Palladium-Catalyzed Retro-Propargylation of Homopropargyl Alcohols

  摘要：

  Treatment of tertiary homopropargyl alcohol with aryl halide under palladium catalysis provided arylallenes regioselectively. The reaction includes retropropargylation, which proceeds in a concerted fashion via a cyclic transition state and transfers the stereochemistry of homopropargyl alcohols through C-C bond cleavage. The present method enables the use of homopropargyl alcohols as allenylmetal equivalents.

  DOI：

  10.1021/ja800986m

文献信息

• Synthesis of Arylallenes by Palladium-Catalyzed Retro-Propargylation of Homopropargyl Alcohols
  作者：Sayuri Hayashi、Koji Hirano、Hideki Yorimitsu、Koichiro Oshima

  DOI：10.1021/ja800986m

  日期：2008.4.1

  Treatment of tertiary homopropargyl alcohol with aryl halide under palladium catalysis provided arylallenes regioselectively. The reaction includes retropropargylation, which proceeds in a concerted fashion via a cyclic transition state and transfers the stereochemistry of homopropargyl alcohols through C-C bond cleavage. The present method enables the use of homopropargyl alcohols as allenylmetal equivalents.