9-hydroxy-1,7,7-trimethylbicyclo<2.2.1>heptan-2-one | 10334-06-2

• 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: 9-hydroxy-1,7,7-trimethylbicyclo<2.2.1>heptan-2-one
• 英文别名: (+)-(1R,4R,7R)-8-hydroxycamphor；(+)-9-hydroxycamphor；9-hydroxycamphor
• CAS: 10334-06-2
• 化学式: C₁₀H₁₆O₂
• 分子量: 168.236
• InChiKey: MANWHKQXMFYQDY-FKTZTGRPSA-N

物化性质

• 沸点：
  258.8±13.0 °C(Predicted)
• 密度：
  1.096±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.37
• 重原子数：
  12.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  37.3
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  9-hydroxy-1,7,7-trimethylbicyclo<2.2.1>heptan-2-one 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 6.0h， 以0.35 kg的产率得到(4-吗啉基亚甲基)丙二腈
  参考文献：
  名称：

  一种氧化樟脑的合成工艺

  摘要：

  本发明公开一种氧化樟脑合成工艺。将(+)‑3,9‑二溴樟脑与乙酸乙酯，在1,8‑二氮杂双环[5.4.0]十一碳‑7‑烯催化下成酯，再还原得到(+)‑9‑乙酰氧基樟脑，再加入氢氧化钠，N，N‑二甲基甲酰胺进行水解反应得到(+)‑9‑羟基樟脑，在四氢呋喃溶液中用氢化铝锂还原9‑羟基樟脑得到氧化樟脑，经过浓缩，二氯甲烷溶解脱色得到氧化樟脑。本发明收率较高绿色环保，得到产品纯度大于99.5％，达到国家现行注射剂标准。

  公开号：

  CN110540495A
• 作为产物：
  描述：

  (1R,4R,7R)-9-bromocamphor 在 lithium hydroxide 作用下， 以 四氢呋喃 、 水 、 N,N-二甲基甲酰胺 为溶剂， 生成 9-hydroxy-1,7,7-trimethylbicyclo<2.2.1>heptan-2-one
  参考文献：
  名称：

  抗真菌Sordarins的单环核心的合成

  摘要：

  已经完成了对霉菌Sordarins和Sardaricins的单环核心的对映体合成。该合成基于（+）-3,9-二溴樟脑向具有这些抗真菌剂中所有关键功能的1,1,2,2,5-五取代环戊烷的转化。

  DOI：

  10.1016/s0040-4039(98)01910-8

文献信息

• In vivo and in vitro hydroxylation of cineole and camphor by cytochromes P450CYP101A1, CYP101B1 and N242A CYP176A1
  作者：Jeanette E. Stok、Emma A. Hall、Isobella S.J. Stone、Margaret C. Noble、Siew Hoon Wong、Stephen G. Bell、James J. De Voss

  DOI：10.1016/j.molcatb.2016.03.004

  日期：2016.6

  Cytochromes P450 (P450s) are valuable enzymes that can generate a range of useful compounds via biocatalytic oxidations that complement traditional synthetic chemistry. In this study three bacterial P450s, qP450(cam) (CYP101A1), CYP101B1 and the mutant N242A-P450(cin) (N242A-CYP176A1), were used to produce a range of products from the oxidation of the monoterpenes (1R)- and (1S) -camphor and 1,8-cineole. We demonstrate that both in vitro and in vivo catalytic turnover with these P450s can produce a complement of up to seven hydroxycamphors and seven hydroxycineoles, in addition to compounds produced from further oxidation. The CYP101B1 whole cell catalytic system was found to produce 300-600 mg/L of culture of oxidation products that could be easily separated chromatographically. The CYP101B1 in vitro oxidation of 1,8-cineole primarily produced (1S)-5 alpha-hydroxycineole, which was 78% of the total product formed. However, the amount of (1S)-5a-hydroxycineole was reduced to 42% of the total products when isolated from the CYP101B1 whole cell system. (1S)-6 alpha-Hydroxycineole (96% ee) could be isolated from a whole cell catalytic turnover of 1,8-cineole by N242A-P450c,n in a yield of 46 mg/L (98% of the total product). However, the amount of product isolated ((1R)-5-endo-hydroxycamphor, 75% of the total products) from the whole cell catalytic oxidation of (1R) -camphor with N242A-P450c,n was much lower (6 mg/L) due to the inefficient use of reducing equivalents (3.5 + 0.5%) for substrate oxidation. These compounds will assist in the identification of specific structures in mechanistic investigations and structure elucidation, but further optimisation is required to generate larger quantities for synthetic applications. (C) 2016 Elsevier B.V. All rights reserved.