1-(2-phenylethynylcyclohex-1-enyl)-3-phenylpropyn-1-ol | 196407-34-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: 1-(2-phenylethynylcyclohex-1-enyl)-3-phenylpropyn-1-ol
• CAS: 196407-34-8
• 化学式: C₂₃H₂₀O
• 分子量: 312.411
• InChiKey: PHBIWRZSYQNKNW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.32
• 重原子数：
  24.0
• 可旋转键数：
  1.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  20.23
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  1-(2-phenylethynylcyclohex-1-enyl)-3-phenylpropyn-1-ol 在 manganese(IV) oxide 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 以50%的产率得到1-(2-phenylethynylcyclohex-1-enyl)-3-phenylpropyn-1-one
  参考文献：
  名称：

  Ring Size and Substituent Effects in Oxyanion-Promoted Cyclizations of Enyne-allenes:  Observation of a Myers−Saito Cycloaromatization at Cryogenic Temperature

  摘要：

  A series of acetoxy-substituted enyne-allenes, fused to cyclopentene and cyclohexene ring systems, were synthesized and treated with methyllithium to generate the corresponding enolates. It was found that whereas the cyclohexannulated examples underwent either C-2-C-7 (Myers-Saito) cycloaromatization or C-2-C-6 (Schmittel) cyclization depending on their terminal subsituents, the cyclopentannulated examples either failed to cyclize altogether or underwent C-2-C-7 cyclization. Both of these results lie in contrast to the behavior of their benzannulated analogues, which underwent exclusive C-2-C-6 cyclization independent of substituents. These findings are rationalized on the basis of both ring strain effects and the steric encumbrance of the terminal alkynyl and allenyl subsituents.

  DOI：

  10.1021/jo061088n
• 作为产物：
  描述：

  2-溴-1-环己烯-1-甲醛 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 甲苯 为溶剂， 反应 22.0h， 生成 1-(2-phenylethynylcyclohex-1-enyl)-3-phenylpropyn-1-ol
  参考文献：
  名称：

  Ring size effects in the C2–C6 biradical cyclisation of enyne–allenes and the relevance for neocarzinostatin

  摘要：

  烯炔醛 1 热环化反应的区域选择性可随环烯的环径大小而变化。以环戊烯作为烯分子时，会形成迈尔萨托（C2âC7）环芳香化产物，而以六元和七元环烯为烯分子时，则会出现新颖的 C2âC6 环化现象。DFT 计算用于合理解释这些变化。讨论了这些发现对新卡西诺司他汀的替代热双向环化反应的影响。

  DOI：

  10.1039/b102380m

文献信息

• Gold-Catalyzed Oxidative Cyclizations of {<i>o</i>-(Alkynyl)phenyl propargyl} Silyl Ether Derivatives Involving 1,2-Enynyl Migration: Synthesis of Functionalized 1<i>H</i>-Isochromenes and 2<i>H</i>-Pyrans
  作者：Jidong Zhao、Wei Xu、Xin Xie、Ning Sun、Xiangdong Li、Yuanhong Liu

  DOI：10.1021/acs.orglett.8b02380

  日期：2018.9.7

  A new and convenient strategy for the synthesis of functionalized 1H-isochromene and 2H-pyran derivatives based on gold-catalyzed oxidative cyclizations of o-(alkynyl)phenyl propargyl ether derivatives has been developed. The reaction proceeds via gold-catalyzed highly regioselective oxidation, followed by 1,2-migration of an enynyl group and nucleophlic addition. Isocoumarins were also constructed

  基于金催化的邻-（炔基）苯基炔丙基醚衍生物的氧化环化反应，开发了一种新的方便的合成功能化的1 H-异戊二烯和2 H-吡喃衍生物的策略。该反应通过金催化的高度区域选择性氧化进行，然后进行烯键基的1，2-迁移和核苷加成。还通过氧化裂解所获得的1 H-异色酮的环外双键来构建异香豆素。
• Ring Strain Effects in Enyne-Allene Thermolysis: Switch from the Myers-Saito Reaction to the C2-C6 Biradical Cyclization
  作者：Michael Schmittel、Jens-Peter Steffen、Dominik Auer、Michael Maywald

  DOI：10.1016/s0040-4039(97)01393-2

  日期：1997.9

  The mode of the thermal cyclization of enyne-allenes 1 depends on ring strain effects: when the ene functionality is part of a benzene, cyclohexene or cycloheptene ring the novel C2-C6 biradical cyclization is observed, while when it is part of a cyclopentene ring the Myers-Saito cycloaromatization is registered. © 1997 Elsevier Science Ltd.

  烯炔-丙烯1的热环化模式取决于环应变效应：当烯官能团是苯，环己烯或环庚烯环的一部分时，观察到新型C 2 -C 6双自由基环化，而当它是a的一部分时Myers-Saito环芳环化反应的环戊烯环已注册。©1997爱思唯尔科学有限公司。
• Ring size effects in the C2–C6 biradical cyclisation of enyne–allenes and the relevance for neocarzinostatin
  作者：Michael Schmittel、Jens-Peter Steffen、Michael Maywald、Bernd Engels、Holger Helten、Patrick Musch

  DOI：10.1039/b102380m

  日期：——

  The regioselectivity of the thermal cyclisations of enyne–allenes 1 can be toggled as a function of the ring size of the cycloalkene. With a cyclopentene as the ene moiety the Myers–Saito (C2–C7) cycloaromatisation product is formed, whereas with six- and seven-membered cycloalkenes the novel C2–C6 cyclisation is observed. DFT calculations are used to rationalise these changes. The implications of these findings for alternative thermal biradical cyclisations of neocarzinostatin are discussed.

  烯炔醛 1 热环化反应的区域选择性可随环烯的环径大小而变化。以环戊烯作为烯分子时，会形成迈尔萨托（C2âC7）环芳香化产物，而以六元和七元环烯为烯分子时，则会出现新颖的 C2âC6 环化现象。DFT 计算用于合理解释这些变化。讨论了这些发现对新卡西诺司他汀的替代热双向环化反应的影响。
• Ring Size and Substituent Effects in Oxyanion-Promoted Cyclizations of Enyne-allenes:  Observation of a Myers−Saito Cycloaromatization at Cryogenic Temperature
  作者：Michelle K. Waddell、Tefsit Bekele、Mark A. Lipton

  DOI：10.1021/jo061088n

  日期：2006.10.1

  A series of acetoxy-substituted enyne-allenes, fused to cyclopentene and cyclohexene ring systems, were synthesized and treated with methyllithium to generate the corresponding enolates. It was found that whereas the cyclohexannulated examples underwent either C-2-C-7 (Myers-Saito) cycloaromatization or C-2-C-6 (Schmittel) cyclization depending on their terminal subsituents, the cyclopentannulated examples either failed to cyclize altogether or underwent C-2-C-7 cyclization. Both of these results lie in contrast to the behavior of their benzannulated analogues, which underwent exclusive C-2-C-6 cyclization independent of substituents. These findings are rationalized on the basis of both ring strain effects and the steric encumbrance of the terminal alkynyl and allenyl subsituents.