ethyl 6-phenyl-4-(3,4-dimethoxyphenyl)-4-(trimethylsiloxy)-(5E)-hexen-2-ynoate | 908254-37-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: ethyl 6-phenyl-4-(3,4-dimethoxyphenyl)-4-(trimethylsiloxy)-(5E)-hexen-2-ynoate
• 英文别名: ethyl (E)-4-(3,4-dimethoxyphenyl)-6-phenyl-4-trimethylsilyloxyhex-5-en-2-ynoate
• CAS: 908254-37-5
• 化学式: C₂₅H₃₀O₅Si
• 分子量: 438.596
• InChiKey: ZEJNVULEYODIKM-BMRADRMJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.03
• 重原子数：
  31
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl 6-phenyl-4-(3,4-dimethoxyphenyl)-4-(trimethylsiloxy)-(5E)-hexen-2-ynoate 、 对甲氧基苯磺酰胺 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以45%的产率得到ethyl [1-(4-methoxybenzenesulfonyl)-3-(3,4-dimethoxyphenyl)-5-phenylpyrrol-2-yl]acetate
  参考文献：
  名称：

  Efficient Synthesis of 1,3,5-Trisubstituted (Pyrrol-2-yl)acetic Acid Esters via Dual Nucleophilic Reactions of Sulfonamides or Carbamate with 4-Trimethyl-siloxy-(5E)-hexen-2-ynoates:  Lewis Acid Catalyzed S_N1 and Intramolecular Michael Addition

  摘要：

  Carbamates or sulfonamides have proven to regioselectively attack 2-propynyl-allyl hybrid cations, generated by the action of TMSOTf on 4-(trimethylsioxy)hex-5-en-2-ynoates, to afford conjugated 6-aminohex-4-en-2-ynoates in which an intramolecular amino-Michael reaction took place, leading to pyrrole frameworks. In particular, the sulfonamides gave 1-sulfonylpyrroles in one pot.

  DOI：

  10.1021/ol0616485
• 作为产物：
  描述：

  (E)-1-(3,4-dimethoxyphenyl)-3-phenylprop-2-en-1-one 在 咪唑 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 5.0h， 生成 ethyl 6-phenyl-4-(3,4-dimethoxyphenyl)-4-(trimethylsiloxy)-(5E)-hexen-2-ynoate
  参考文献：
  名称：

  Efficient Synthesis of 1,3,5-Trisubstituted (Pyrrol-2-yl)acetic Acid Esters via Dual Nucleophilic Reactions of Sulfonamides or Carbamate with 4-Trimethyl-siloxy-(5E)-hexen-2-ynoates:  Lewis Acid Catalyzed S_N1 and Intramolecular Michael Addition

  摘要：

  Carbamates or sulfonamides have proven to regioselectively attack 2-propynyl-allyl hybrid cations, generated by the action of TMSOTf on 4-(trimethylsioxy)hex-5-en-2-ynoates, to afford conjugated 6-aminohex-4-en-2-ynoates in which an intramolecular amino-Michael reaction took place, leading to pyrrole frameworks. In particular, the sulfonamides gave 1-sulfonylpyrroles in one pot.

  DOI：

  10.1021/ol0616485

文献信息

• Efficient Synthesis of 1,3,5-Trisubstituted (Pyrrol-2-yl)acetic Acid Esters via Dual Nucleophilic Reactions of Sulfonamides or Carbamate with 4-Trimethyl-siloxy-(5<i>E</i>)-hexen-2-ynoates:  Lewis Acid Catalyzed S_N1 and Intramolecular Michael Addition
  作者：Teruhiko Ishikawa、Toshiaki Aikawa、Shinichiro Watanabe、Seiki Saito

  DOI：10.1021/ol0616485

  日期：2006.8.1

  Carbamates or sulfonamides have proven to regioselectively attack 2-propynyl-allyl hybrid cations, generated by the action of TMSOTf on 4-(trimethylsioxy)hex-5-en-2-ynoates, to afford conjugated 6-aminohex-4-en-2-ynoates in which an intramolecular amino-Michael reaction took place, leading to pyrrole frameworks. In particular, the sulfonamides gave 1-sulfonylpyrroles in one pot.