[(1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-2-bicyclo[2.2.1]heptanyl] 2-diazoundecanoate | 208399-37-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: [(1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-2-bicyclo[2.2.1]heptanyl] 2-diazoundecanoate
• CAS: 208399-37-5
• 化学式: C₃₁H₄₂N₂O₂
• 分子量: 474.687
• InChiKey: NENKUFAADFSEAO-JBGDWIKQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.1
• 重原子数：
  35
• 可旋转键数：
  12
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  28.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  [(1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-2-bicyclo[2.2.1]heptanyl] 2-diazoundecanoate 在 rhodium(II) pivalate 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 生成 (Z)-Undec-2-enoic acid (1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-bicyclo[2.2.1]hept-2-yl ester 、 (1R,2R)-2-Pentyl-cyclopentanecarboxylic acid (1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-bicyclo[2.2.1]hept-2-yl ester 、 (1S,2S)-2-Pentyl-cyclopentanecarboxylic acid (1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-bicyclo[2.2.1]hept-2-yl ester
  参考文献：
  名称：

  Rhodium-Mediated Intramolecular C−H Insertion:  Probing the Geometry of the Transition State

  摘要：

  The unsymmetrical alpha-diazo ester 1b, derived from the chiral naphthylborneol 5, was cyclized with a set of rhodium carboxylates (L = CF3CO2, CH3CO2, CH3(CH2)(6)CO2, (CH3)(3)CCO2). The ratio of the three major products ((R,R)-3b, (S,S)-3b, 4b) was determined. It was found that the rhodium catalyst derived from pivalic acid gave the highest ratio of 3b:4b. Lowering the temperature of the reaction (L = (CH3)(3)CCO2) increased both the yield and the diastereoselectivity of the cyclization. From these results and from our computational analysis, it is concluded that the ester carbonyl and the rhodium carbenoid are probably syn in the transition state leading to cyclization.

  DOI：

  10.1021/jo9803434
• 作为产物：
  描述：

  2-acetylundecanoic acid methyl ester 在 4-二甲氨基吡啶 、 p-nitrobenzenesulfonyl azide 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 73.0h， 生成 [(1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-2-bicyclo[2.2.1]heptanyl] 2-diazoundecanoate
  参考文献：
  名称：

  Rhodium-Mediated Intramolecular C−H Insertion:  Probing the Geometry of the Transition State

  摘要：

  The unsymmetrical alpha-diazo ester 1b, derived from the chiral naphthylborneol 5, was cyclized with a set of rhodium carboxylates (L = CF3CO2, CH3CO2, CH3(CH2)(6)CO2, (CH3)(3)CCO2). The ratio of the three major products ((R,R)-3b, (S,S)-3b, 4b) was determined. It was found that the rhodium catalyst derived from pivalic acid gave the highest ratio of 3b:4b. Lowering the temperature of the reaction (L = (CH3)(3)CCO2) increased both the yield and the diastereoselectivity of the cyclization. From these results and from our computational analysis, it is concluded that the ester carbonyl and the rhodium carbenoid are probably syn in the transition state leading to cyclization.

  DOI：

  10.1021/jo9803434