9-O-tert-butyl 3-O,6-O-dimethyl (2R,3S,4R,5R,6S,7S)-11-[[tert-butyl(dimethyl)silyl]oxymethyl]-3,6-diphenyl-9-azatetracyclo[6.3.0.02,4.05,7]undeca-1(8),10-diene-3,6,9-tricarboxylate | 905710-09-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: 9-O-tert-butyl 3-O,6-O-dimethyl (2R,3S,4R,5R,6S,7S)-11-[[tert-butyl(dimethyl)silyl]oxymethyl]-3,6-diphenyl-9-azatetracyclo[6.3.0.02,4.05,7]undeca-1(8),10-diene-3,6,9-tricarboxylate
• CAS: 905710-09-0
• 化学式: C₃₈H₄₇NO₇Si
• 分子量: 657.879
• InChiKey: FCZFHVZHKOXAEH-DFADEKEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.46
• 重原子数：
  47
• 可旋转键数：
  12
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  93.1
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  9-O-tert-butyl 3-O,6-O-dimethyl (2R,3S,4R,5R,6S,7S)-11-[[tert-butyl(dimethyl)silyl]oxymethyl]-3,6-diphenyl-9-azatetracyclo[6.3.0.02,4.05,7]undeca-1(8),10-diene-3,6,9-tricarboxylate 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 3.5h， 以70%的产率得到1-(tert-butyl) 4,5-dimethyl (3bR,4S,4aR,4bR,5S,5aS)-3-(hydroxymethyl)-4,5-diphenyl-3b,4,4a,4b,5,5a-hexahydro-1H-dicyclopropa[e,g]indole-1,4,5-tricarboxylate
  参考文献：
  名称：

  Investigation into Factors Influencing Stereoselectivity in the Reactions of Heterocycles with Donor−Acceptor-Substituted Rhodium Carbenoids

  摘要：

  Rhodium-catalyzed decomposition of aryldiazoacetates in the presence of pyrroles or furans results in mono- or biscyclopropanation of the heterocycle, but with opposite enantioinduction. In the absence of sterically encumbering groups, the cyclopropanation of furan occurs with initial bond formation at the 2-position. If this pathway is sterically blocked, cyclopropanation can occur with initial bond formation at the 3-position of the furan ring; in this case, the cyclopropanation reaction takes place on the opposite face of the heterocycle, and the opposite enantioinduction is observed. Upon extension of this methodology to benzofurans, a highly enantioselective monocyclopropanation reaction occurs to furnish a product derived from initial bond formation at the 2-position of the benzofuran. When this reaction pathway is inhibited by sterically encumbering substituents on the benzofuran, no cyclopropanation of the furan ring is observed, and instead, double cyclopropanation of the benzene ring occurs. Double cyclopropanation of the benzene ring was also observed in reactions with indoles.

  DOI：

  10.1021/jo060779g
• 作为产物：
  描述：

  3-羟基甲基吲哚-1-羧酸叔丁酯 在 dirhodium(II) tetrakis[(S)-N-phthaloyl-tert-leucinate] 咪唑 作用下， 以 二氯甲烷 为溶剂， 生成 9-O-tert-butyl 3-O,6-O-dimethyl (2R,3S,4R,5R,6S,7S)-11-[[tert-butyl(dimethyl)silyl]oxymethyl]-3,6-diphenyl-9-azatetracyclo[6.3.0.02,4.05,7]undeca-1(8),10-diene-3,6,9-tricarboxylate
  参考文献：
  名称：

  Investigation into Factors Influencing Stereoselectivity in the Reactions of Heterocycles with Donor−Acceptor-Substituted Rhodium Carbenoids

  摘要：

  Rhodium-catalyzed decomposition of aryldiazoacetates in the presence of pyrroles or furans results in mono- or biscyclopropanation of the heterocycle, but with opposite enantioinduction. In the absence of sterically encumbering groups, the cyclopropanation of furan occurs with initial bond formation at the 2-position. If this pathway is sterically blocked, cyclopropanation can occur with initial bond formation at the 3-position of the furan ring; in this case, the cyclopropanation reaction takes place on the opposite face of the heterocycle, and the opposite enantioinduction is observed. Upon extension of this methodology to benzofurans, a highly enantioselective monocyclopropanation reaction occurs to furnish a product derived from initial bond formation at the 2-position of the benzofuran. When this reaction pathway is inhibited by sterically encumbering substituents on the benzofuran, no cyclopropanation of the furan ring is observed, and instead, double cyclopropanation of the benzene ring occurs. Double cyclopropanation of the benzene ring was also observed in reactions with indoles.

  DOI：

  10.1021/jo060779g