2-(3,4-dimethoxyphenyl)-2-cyclohexen-1-ol | 189363-85-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(3,4-dimethoxyphenyl)-2-cyclohexen-1-ol
• 英文别名: 2-(3,4-Dimethoxyphenyl)cyclohex-2-en-1-ol
• CAS: 189363-85-7
• 化学式: C₁₄H₁₈O₃
• 分子量: 234.295
• InChiKey: WTJCEXLIRXILRS-UHFFFAOYSA-N

物化性质

• 沸点：
  374.3±42.0 °C(Predicted)
• 密度：
  1.132±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(3,4-dimethoxyphenyl)-2-cyclohexen-1-ol 在 3,5-二甲基吡唑 、 chromium(VI) oxide 、 氢氧化钾 、 sodium tetrahydroborate 、 N-溴代丁二酰亚胺(NBS) 、 lithium aluminium tetrahydride 、 草酰氯 、 偶氮二异丁腈 、 三氟化硼乙醚 、 三丁基氯化锡 、 三甲基铝 、 sodium hydride 、 二甲基亚砜 、 三乙胺 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 乙醚 、 乙醇 、 二氯甲烷 、 叔丁醇 为溶剂， 反应 137.0h， 生成 松叶菊碱提取物
  参考文献：
  名称：

  Asymmetric synthesis of sceletium alkaloids: (−)-mesembrine, (+)-sceletium A-4, (+)-tortuosamine and (+)-N-formyltortuosamine

  摘要：

  Three procedures for the transformation of achiral 1-(3,4-dimethoxyphenyl)cyclohexene into enantiomerically pure 2-(3,4-dimethoxyphenyl)cyclohex-2-en-1-ol have been established at first. Utilizing the (-)-cyclohexenol thus obtained, the four titled Sceletium alkaloids have been synthesized in the natural enantiomeric forms. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01689-x
• 作为产物：
  描述：

  [2-(3,4-Dimethoxyphenyl)cyclohex-2-en-1-yl] 3-chlorobenzoate 在 potassium carbonate 作用下， 以 甲醇 为溶剂， 反应 24.0h， 以91%的产率得到2-(3,4-dimethoxyphenyl)-2-cyclohexen-1-ol
  参考文献：
  名称：

  Asymmetric synthesis of sceletium alkaloids: (−)-mesembrine, (+)-sceletium A-4, (+)-tortuosamine and (+)-N-formyltortuosamine

  摘要：

  Three procedures for the transformation of achiral 1-(3,4-dimethoxyphenyl)cyclohexene into enantiomerically pure 2-(3,4-dimethoxyphenyl)cyclohex-2-en-1-ol have been established at first. Utilizing the (-)-cyclohexenol thus obtained, the four titled Sceletium alkaloids have been synthesized in the natural enantiomeric forms. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01689-x

文献信息

• Palladium-Catalyzed Asymmetric Allylic Substitution of 2-Arylcyclohexenol Derivatives:  Asymmetric Total Syntheses of (+)-Crinamine, (−)-Haemanthidine, and (+)-Pretazettine
  作者：Toyoki Nishimata、Yoshihiro Sato、Miwako Mori

  DOI：10.1021/jo030309b

  日期：2004.3.1

  Much interest has been shown in Amaryllidaceae alkaloids as synthetic targets due to their wide range of biological activities. Over 100 alkaloids have been isolated from members of the Amaryllidaceae family; most of them can be classified into eight skeletally homogeneous groups. We have succeeded in the first asymmetric total syntheses of the crinane-type alkaloids (+)-crinamine (1), (−)-haemanthidine

  由于金莲花科生物碱具有广泛的生物学活性，因此已显示出许多作为合成靶标的兴趣。从金莲花科的成员中已经分离出了100多种生物碱。它们中的大多数可以分为八个骨骼上同质的组。我们已经成功完成了首批不对称全合成的环戊烯型生物碱（+）-木胺（1），（-）-甘露定（2）和（+）-Pretazettine（3）。通过钯催化的不对称胺化从烯丙基膦酸酯11c获得起始环己烯基胺14，产率为82％，ee为74％。产物从MeOH中重结晶。有趣的是，（-）- 14从母液中得到ee含量为99％的ee（回收率为74％）。（-）- 10的分子内羰基-烯反应以高度立体选择性的方式进行，得到六氢吲哚衍生物9作为唯一产物。在路易斯酸催化的羰基烯反应中，以高收率分离出一种有趣的重排产物20。由9，合成（+）-木胺。因此，从11c开始，经过10个步骤完成了（+）-肉桂胺的不对称全合成，总收率为19％。通过短时间的步骤，也从9获得了（-）-甘露啶的总合成。
• Total Syntheses of (−)-Mesembrane and (−)-Mesembrine <i>via</i> Palladium-Catalyzed Enantioselective Allylic Substitution and Zirconium-Promoted Cyclization
  作者：Miwako Mori、Shinji Kuroda、Chang-Shan Zhang、Yoshihiro Sato

  DOI：10.1021/jo9701187

  日期：1997.5.1

  4-Arylhexahydroindole derivatives 5 were synthesized from 2-arylcyclohexenyl allylamine derivatives 4, which have a large protecting group on nitrogen, using zirconium-promoted cyclization. Reaction of 4e with Cp2ZrBu2, followed by treatment with MeMgBr and then O-2, gave 2a in 63% yield by a one-pot reaction, since the approach of Oz to zirconium was prevented by the aryl group. The total syntheses of (+/-)-mesembrane and (+/-)-mesembrine were achieved starting from 2a. To synthesize these natural products in a chiral form, the starting allylamine derivative 24 (80% yield, 86% ee, recrystallized from MeOH, 99% ee with 79% recovery) was prepared from allyl carbonate 22a and N-tosylallylamine 23 using palladium-catalyzed asymmetric amination in the presence of (S)-BINAPO as a chiral ligand. (-)-Mesembrane and (-)-mesembrine were synthesized from this allylamine 24.
• Asymmetric synthesis of sceletium alkaloids: (−)-mesembrine, (+)-sceletium A-4, (+)-tortuosamine and (+)-N-formyltortuosamine
  作者：Osamu Yamada、Kunio Ogasawara

  DOI：10.1016/s0040-4039(98)01689-x

  日期：1998.10

  Three procedures for the transformation of achiral 1-(3,4-dimethoxyphenyl)cyclohexene into enantiomerically pure 2-(3,4-dimethoxyphenyl)cyclohex-2-en-1-ol have been established at first. Utilizing the (-)-cyclohexenol thus obtained, the four titled Sceletium alkaloids have been synthesized in the natural enantiomeric forms. (C) 1998 Elsevier Science Ltd. All rights reserved.