[(1R,2S,5R)-5-methyl-2-(2-phenylpropan-2-yl)cyclohexyl] (1R,4aS,10aR)-6-methoxy-1,4a-dimethyl-2-oxo-4,9,10,10a-tetrahydro-3H-phenanthrene-1-carboxylate | 154903-59-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: [(1R,2S,5R)-5-methyl-2-(2-phenylpropan-2-yl)cyclohexyl] (1R,4aS,10aR)-6-methoxy-1,4a-dimethyl-2-oxo-4,9,10,10a-tetrahydro-3H-phenanthrene-1-carboxylate
• CAS: 154903-59-0
• 化学式: C₃₄H₄₄O₄
• 分子量: 516.721
• InChiKey: NHFSREHROVXKHG-BYDRFGGPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.6
• 重原子数：
  38
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.59
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  [(1R,2S,5R)-5-methyl-2-(2-phenylpropan-2-yl)cyclohexyl] (1R,4aS,10aR)-6-methoxy-1,4a-dimethyl-2-oxo-4,9,10,10a-tetrahydro-3H-phenanthrene-1-carboxylate 在 盐酸 、 sodium chlorite 、 sodium dihydrogenphosphate 、 lithium aluminium tetrahydride 、 2-甲基-2-丁烯 、 草酰氯 、 二甲基亚砜 、 三乙胺 、 锌 作用下， 以 四氢呋喃 、 乙醚 、 水 、 叔丁醇 为溶剂， 反应 77.83h， 生成 O-methylpodocarpic acid
  参考文献：
  名称：

  Asymmetric induction in manganese(III)-based oxidative free-radical cyclizations of phenylmenthyl acetoacetates and 2,5-dimethylpyrrolidine acetoacetamides

  摘要：

  Mn(III)-based oxidative free-radical cyclization of phenylmenthyl ester 1e afforded 90% of 13 with 86% de. Cyclization of 31b provided 56% of (+)-podocarpic acid precursor 32e with 82% de. The direction of de was opposite in these two cases. Oxidative cyclization of a-methyl beta-keto ester 44b gave a 1:1.6 mixture of 46b and 47b while alpha-propyl beta-keto ester 44d produced a > 10:1 mixture of 46d and 47d indicating that the extent and direction of de is dependent on the size of the alpha-substituent The reaction proceeds through transition states 12 and 56 with large alpha-substituents and through transition states 19 and 57 with small a-substituents. The de depends on the double-bond substitution pattern as shown by the decreased de with 37b and 37d, and selectivity in the 5-exo cyclization of 64b, 65b, 70b, and 71b is low.

  DOI：

  10.1021/jo00079a006
• 作为产物：
  描述：

  (-)-8-苯基薄荷醇 在 4-二甲氨基吡啶 、 N,N-二甲基丙烯基脲 、 manganese triacetate 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 甲苯 为溶剂， 反应 131.5h， 生成 [(1R,2S,5R)-5-methyl-2-(2-phenylpropan-2-yl)cyclohexyl] (1R,4aS,10aR)-6-methoxy-1,4a-dimethyl-2-oxo-4,9,10,10a-tetrahydro-3H-phenanthrene-1-carboxylate
  参考文献：
  名称：

  Asymmetric induction in manganese(III)-based oxidative free-radical cyclizations of phenylmenthyl acetoacetates and 2,5-dimethylpyrrolidine acetoacetamides

  摘要：

  Mn(III)-based oxidative free-radical cyclization of phenylmenthyl ester 1e afforded 90% of 13 with 86% de. Cyclization of 31b provided 56% of (+)-podocarpic acid precursor 32e with 82% de. The direction of de was opposite in these two cases. Oxidative cyclization of a-methyl beta-keto ester 44b gave a 1:1.6 mixture of 46b and 47b while alpha-propyl beta-keto ester 44d produced a > 10:1 mixture of 46d and 47d indicating that the extent and direction of de is dependent on the size of the alpha-substituent The reaction proceeds through transition states 12 and 56 with large alpha-substituents and through transition states 19 and 57 with small a-substituents. The de depends on the double-bond substitution pattern as shown by the decreased de with 37b and 37d, and selectivity in the 5-exo cyclization of 64b, 65b, 70b, and 71b is low.

  DOI：

  10.1021/jo00079a006

文献信息

• Zhang Qingwei, Mohan Raju M., Cook Laura, Kazanis Sophia, Peisach Daniel,+, J. Org. Chem, 58 (1993) N 27, S 7640-7651
  作者：Zhang Qingwei, Mohan Raju M., Cook Laura, Kazanis Sophia, Peisach Daniel,+

  DOI：——

  日期：——