2-Allyl-4-methoxy-6-isopropylphenol | 150267-58-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 2-Allyl-4-methoxy-6-isopropylphenol
• 英文别名: 4-Methoxy-2-propan-2-yl-6-prop-2-enylphenol
• CAS: 150267-58-6
• 化学式: C₁₃H₁₈O₂
• 分子量: 206.285
• InChiKey: JHOWKTYENRCWFH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-Allyl-4-methoxy-6-isopropylphenol 在 氢氧化钾 、 sodium hydroxide 、 sodium chlorite 、 草酰氯 、 dimethyl sulfide borane 、 氨基磺酸 、 双氧水 、 potassium carbonate 、 对甲苯磺酸 、 二甲基亚砜 、 三乙胺 作用下， 以 1,4-二氧六环 、 甲醇 、 乙醚 、 水 、 丙酮 、 苯 为溶剂， 反应 31.63h， 生成 5,8-Dimethoxy-1,4a-dimethyl-7-isopropyl-4,4a,9,10-tetrahydro-2(3H)-phenanthrenone
  参考文献：
  名称：

  Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A

  摘要：

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.

  DOI：

  10.1021/jo00081a021
• 作为产物：
  描述：

  4-溴-2-异丙基苯酚 在 copper(l) iodide 、 potassium carbonate 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 14.0h， 生成 2-Allyl-4-methoxy-6-isopropylphenol
  参考文献：
  名称：

  Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A

  摘要：

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.

  DOI：

  10.1021/jo00081a021

文献信息

• Diastereoselective total syntheses of (±)-triptoquinone B and C
  作者：Kozo Shishido、Kiyoto Goto、Asae Tsuda、Yoshihisa Takaishi、Masayuki Shibuya

  DOI：10.1039/c39930000793

  日期：——

  The first and efficient total syntheses of (±)-triptoquinone B 1 and C 2 have been achieved from the allyl ether 3; the key steps are the construction of the four contiguous stereogenic centres present in 2 by the MnIII mediated oxidative free radical cyclisation followed by metal hydride reduction.

  从烯丙基醚3得到了第一个有效的全合成（±）-对苯二酚B 1和C 2。关键步骤是通过Mn III介导的氧化性自由基环化以及随后的金属氢化物还原，构建2个存在的四个连续的立体异构中心。
• Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A
  作者：Kozo Shishido、Kiyoto Goto、Shizuka Miyoshi、Yoshihisa Takaishi、Masayuki Shibuya

  DOI：10.1021/jo00081a021

  日期：1994.1

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.