(R)-7-[(1S,2S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-bicyclo[3.1.1]hept-2-yl]-5-methyl-heptan-2-one | 499797-35-2

• 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: (R)-7-[(1S,2S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-bicyclo[3.1.1]hept-2-yl]-5-methyl-heptan-2-one
• 英文别名: (5R)-7-[(1S,2S,4S,5S)-4-[tert-butyl(dimethyl)silyl]oxy-2,6,6-trimethyl-2-bicyclo[3.1.1]heptanyl]-5-methylheptan-2-one
• CAS: 499797-35-2
• 化学式: C₂₄H₄₆O₂Si
• 分子量: 394.714
• InChiKey: KUNAECLVSARDBK-ZEWLNRLRSA-N

物化性质

• 沸点：
  418.6±18.0 °C(Predicted)
• 密度：
  0.92±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.23
• 重原子数：
  27
• 可旋转键数：
  9
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R)-7-[(1S,2S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-bicyclo[3.1.1]hept-2-yl]-5-methyl-heptan-2-one 在 碳酸氢钠 吡啶 、 氢氧化钾 、 sodium periodate 、 四氧化锇 、 正丁基锂 、 四丁基氟化铵 、 N-甲基吗啉氧化物 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 水 、 叔丁醇 为溶剂， 反应 504035.5h， 生成 (S)-4-[2-((1S,2S,4S,5S)-4-Hydroxy-2,6,6-trimethyl-bicyclo[3.1.1]hept-2-yl)-ethyl]-4-methyl-cyclohex-2-enone
  参考文献：
  名称：

  Synthesis of the 5-7-6 Core of Guanacastepenes. Construction of C8 Quaternary Carbon via the Inversion of Stereochemistry

  摘要：

  [GRAPHICS]An efficient and unique route to the 5-7-6 core of guanacatepene A (1) is described. The installation of the desired stereochemistry at the C8 position was achieved via the desymmetrization of the cyclohexadienone by reductive ring closure of the seven-membered ring. That the closure of the seven-membered ring produced only the desired isomer is hypothesized to be a result of the more stable trans relationship between the C8 and C11 methyl groups.

  DOI：

  10.1021/ol026820t
• 作为产物：
  描述：

  马鞭草烯醇 在 tris(triphenylphosphine)ruthenium(II) chloride 咪唑 、 lithium aluminium tetrahydride 、 碘 、 臭氧 、 magnesium 、 N-甲基吗啉氧化物 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 21.25h， 生成 (R)-7-[(1S,2S,4S,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-bicyclo[3.1.1]hept-2-yl]-5-methyl-heptan-2-one
  参考文献：
  名称：

  Synthesis of the 5-7-6 Core of Guanacastepenes. Construction of C8 Quaternary Carbon via the Inversion of Stereochemistry

  摘要：

  [GRAPHICS]An efficient and unique route to the 5-7-6 core of guanacatepene A (1) is described. The installation of the desired stereochemistry at the C8 position was achieved via the desymmetrization of the cyclohexadienone by reductive ring closure of the seven-membered ring. That the closure of the seven-membered ring produced only the desired isomer is hypothesized to be a result of the more stable trans relationship between the C8 and C11 methyl groups.

  DOI：

  10.1021/ol026820t

文献信息

• Synthesis of the 5-7-6 Core of Guanacastepenes. Construction of C8 Quaternary Carbon via the Inversion of Stereochemistry
  作者：Truc M. Nguyen、Robert J. Seifert、Dale R. Mowrey、Daesung Lee

  DOI：10.1021/ol026820t

  日期：2002.10.1

  [GRAPHICS]An efficient and unique route to the 5-7-6 core of guanacatepene A (1) is described. The installation of the desired stereochemistry at the C8 position was achieved via the desymmetrization of the cyclohexadienone by reductive ring closure of the seven-membered ring. That the closure of the seven-membered ring produced only the desired isomer is hypothesized to be a result of the more stable trans relationship between the C8 and C11 methyl groups.