5-(difluoro(phenylsulfanyl)methyl)-5-hydroxy-1-(3-methylbut-2-enyl)pyrrolidin-2-one | 1152033-02-7

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 5-(difluoro(phenylsulfanyl)methyl)-5-hydroxy-1-(3-methylbut-2-enyl)pyrrolidin-2-one
• 英文别名: 5-[Difluoro(phenylsulfanyl)methyl]-5-hydroxy-1-(3-methylbut-2-enyl)pyrrolidin-2-one
• CAS: 1152033-02-7
• 化学式: C₁₆H₁₉F₂NO₂S
• 分子量: 327.395
• InChiKey: DUFCHJLNDMJCFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  65.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  5-(difluoro(phenylsulfanyl)methyl)-5-hydroxy-1-(3-methylbut-2-enyl)pyrrolidin-2-one 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 甲苯 为溶剂， 反应 5.0h， 生成 7,7-difluoro-7a-hydroxy-6-isopropylhexahydropyrrolizin-3-one 、 7,7-difluoro-7a-hydroxy-6-isopropylhexahydropyrrolizin-3-one
  参考文献：
  名称：

  Fluoride-Catalyzed Addition of PhSCF₂SiMe₃ to N-Substituted Cyclic Imides Followed by Radical Cyclization: General Synthetic Strategy of gem-Difluoromethylenated 1-Azabicyclic Compounds

  摘要：

  PhSCF2SiMe3 (1) was found, for the first time, to undergo fluoride-catalyzed nucleophilic difluoro-(phenylsulfanyl)methylation reaction to cyclic imides 2, affording the corresponding adducts 3 in moderate to good yields. Reductive cleavage of the phenylsulfanyl group of N-alkylated adducts 3 with Bu3SnH/AIBN yielded gem-difluoromethylated products 4. Under the same reduction conditions, N-alkenylated and N-alkynylated adducts 3 afforded the corresponding gem-difluoromethylenated 1-azabicyclic compounds 5 and 6 with trans stereoselectivity. These compounds were employed as precursors for preparing substituted gem-difluoromethylenated pyrrolizidinones and indolizidinones 7 and 8 by treatment with Et3SiH/BF3 center dot OEt2, and compounds 9 and 10 by nucleophilic displacement of the hydroxyl group, using organosilanes in the presence of BF3 center dot OEt2. The synthesis of highly substituted gem-difluoromethylenated pyrrolizidines 13 and 14 was also demonstrated.

  DOI：

  10.1021/jo802794u
• 作为产物：
  描述：

  1-(3-methylbut-2-enyl)pyrrolidine-2,5-dione 、 [二氟(苯硫基)甲基]三甲基硅烷 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 以83%的产率得到5-(difluoro(phenylsulfanyl)methyl)-5-hydroxy-1-(3-methylbut-2-enyl)pyrrolidin-2-one
  参考文献：
  名称：

  Fluoride-Catalyzed Addition of PhSCF₂SiMe₃ to N-Substituted Cyclic Imides Followed by Radical Cyclization: General Synthetic Strategy of gem-Difluoromethylenated 1-Azabicyclic Compounds

  摘要：

  PhSCF2SiMe3 (1) was found, for the first time, to undergo fluoride-catalyzed nucleophilic difluoro-(phenylsulfanyl)methylation reaction to cyclic imides 2, affording the corresponding adducts 3 in moderate to good yields. Reductive cleavage of the phenylsulfanyl group of N-alkylated adducts 3 with Bu3SnH/AIBN yielded gem-difluoromethylated products 4. Under the same reduction conditions, N-alkenylated and N-alkynylated adducts 3 afforded the corresponding gem-difluoromethylenated 1-azabicyclic compounds 5 and 6 with trans stereoselectivity. These compounds were employed as precursors for preparing substituted gem-difluoromethylenated pyrrolizidinones and indolizidinones 7 and 8 by treatment with Et3SiH/BF3 center dot OEt2, and compounds 9 and 10 by nucleophilic displacement of the hydroxyl group, using organosilanes in the presence of BF3 center dot OEt2. The synthesis of highly substituted gem-difluoromethylenated pyrrolizidines 13 and 14 was also demonstrated.

  DOI：

  10.1021/jo802794u