4-(3-methyl-2-butenoxy)-2-butyn-1-ol | 169687-26-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-(3-methyl-2-butenoxy)-2-butyn-1-ol
• 英文别名: 4-[(3-methylbut-2-en-1-yl)oxy]but-2-yn-1-ol；4-(3-Methylbut-2-enoxy)but-2-yn-1-ol
• CAS: 169687-26-7
• 化学式: C₉H₁₄O₂
• 分子量: 154.209
• InChiKey: YBIQXWMUOMUXDB-UHFFFAOYSA-N

物化性质

• 沸点：
  254.8±20.0 °C(Predicted)
• 密度：
  0.977±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.56
• 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：

  4-(3-methyl-2-butenoxy)-2-butyn-1-ol 在 Oxone 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 、 水 为溶剂， 反应 8.0h， 生成 1-(3-methyl-2-butenoxy)-2-(phenylsulfonyl)-2,3-butadiene
  参考文献：
  名称：

  (Phenylsulfonyl)allenes as Substrates for Cycloaddition Reactions: Intramolecular Cyclizations onto Unactivated Alkenes

  摘要：

  The reaction of a series of allyl-substituted bis(phenylsulfonyl)methanes or dimethyl malonates with 2,3-bis(phenylsulfonyl)-1,3-butadiene in the presence of base afforded alkenyl-substituted allenes in good yield. The reaction proceeds by initial attack of the soft carbanion onto the terminal position of the diene, and this is followed by PhSO(2)(-) elimination to give the phenylsulfonyl-substituted allene. Themal [2 + 2]-cycloaddition proceeded across the C-1-C-2 double bond of the allene with completely sterospecificity. Stepwise bonding prefers to occur in a 1,6-exo manner rather than in a 1,7-endo fashion. Substitution at the 7-position of the pi-bond causes a crossover in the regioselectivity of the [2 + 2]-cycloaddition process. All products can be rationalized by a mechanism which includes an initial carbon-carbon bond formation involving the central allene carbon to give a diradical intermediate. The product distribution is then determined by the substitution pattern of the alkene and the fate of the diradical intermediate.

  DOI：

  10.1021/ja00132a005
• 作为产物：
  描述：

  在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 3.5h， 以81%的产率得到4-(3-methyl-2-butenoxy)-2-butyn-1-ol
  参考文献：
  名称：

  (Phenylsulfonyl)allenes as Substrates for Cycloaddition Reactions: Intramolecular Cyclizations onto Unactivated Alkenes

  摘要：

  The reaction of a series of allyl-substituted bis(phenylsulfonyl)methanes or dimethyl malonates with 2,3-bis(phenylsulfonyl)-1,3-butadiene in the presence of base afforded alkenyl-substituted allenes in good yield. The reaction proceeds by initial attack of the soft carbanion onto the terminal position of the diene, and this is followed by PhSO(2)(-) elimination to give the phenylsulfonyl-substituted allene. Themal [2 + 2]-cycloaddition proceeded across the C-1-C-2 double bond of the allene with completely sterospecificity. Stepwise bonding prefers to occur in a 1,6-exo manner rather than in a 1,7-endo fashion. Substitution at the 7-position of the pi-bond causes a crossover in the regioselectivity of the [2 + 2]-cycloaddition process. All products can be rationalized by a mechanism which includes an initial carbon-carbon bond formation involving the central allene carbon to give a diradical intermediate. The product distribution is then determined by the substitution pattern of the alkene and the fate of the diradical intermediate.

  DOI：

  10.1021/ja00132a005

文献信息

• Ruthenabenzene: A Robust Precatalyst
  作者：Saswata Gupta、Siyuan Su、Yu Zhang、Peng Liu、Donald J. Wink、Daesung Lee

  DOI：10.1021/jacs.1c02237

  日期：2021.5.19

  demonstrated them as an aromatic equivalent of the Grubbs-type ruthenium alkylidene catalysts. These ruthenabenzenes can be prepared via an enyne metathesis and metallotropic [1,3]-shift cascade process to form alkyne-chelated ruthenium alkylidene intermediates followed by spontaneous cycloaromatization. The aromatic nature of these complexes was confirmed by spectroscopic and X-ray crystallographic data

  金属芳烃构成了一类独特的芳族化合物，其中一种或多种过渡金属元素结合到芳族体系中，其母体是金属苯。与碳原型相比，金属苯的主要关注点之一通常涉及与其相对芳香性相关的结构特征。含过渡金属的金属苯也涉及某些催化过程，例如炔烃复分解聚合；然而，这些基于过渡金属的金属芳族化合物尚未开发为催化剂。在此，我们描述了一种生成多种钌苯的有效策略，并将它们证明为 Grubbs 型钌亚烷基催化剂的芳族等价物。这些钌苯可以通过烯炔复分解和金属化[1,3]-移位级联工艺制备，形成炔烃螯合的亚烷基钌中间体，然后自发环芳构化。这些配合物的芳香性质通过光谱和 X 射线晶体学数据得到证实，并通过 DFT 计算研究了环芳构化过程的机理途径。这些钌苯对复分解和其他转化表现出强大的催化活性，这说明金属苯不仅是具有结构和理论意义的化合物，而且还是开发新催化剂的新平台。这些配合物的芳香性质通过光谱和 X 射线晶体学数据得到证实，并通过
• Ruthenium-Catalyzed Domino Redox Bicycloisomerization. An Atom-Economical Synthesis of [3.1.0]- and [4.1.0]Carbo- and Heterocycles
  作者：Barry M. Trost、Adam W. Franz

  DOI：10.1021/ja1088452

  日期：2010.12.29

  Supporting Information Available: ESI-MS data of the reaction products formed upon addition of EDA to Co(TPP) and Co(3,5-DitBu-ChenPhyrin); DFT optimized geometries, SOMO and spin density plots of species trans-D; Tables containing ∆E, ∆EZPE, ∆G, ∆H and ∆S values of all DFT optimized geometries; free energies for olefin cyclopropanation at the b3-lyp, def-TZVP level; computed IR CO stretching frequencies

  可用的支持信息：将 EDA 添加到 Co(TPP) 和 Co(3,5-DitBu-ChenPhyrin) 后形成的反应产物的 ESI-MS 数据；DFT 优化几何、SOMO 和物种 trans-D 的自旋密度图；包含所有 DFT 优化几何形状的 ∆E、∆EZPE、∆G、∆H 和 ∆S 值的表格；b3-lyp、def-TZVP 水平的烯烃环丙烷化自由能；计算出的 IR CO 展宽频率。该材料可通过互联网免费提供，网址为 http://pubs.acs.org。
• Gold(i)-catalysed cycloisomerisation of 1,6-enynes into functionalised allenes
  作者：Youssef Harrak、Antoine Simonneau、Max Malacria、Vincent Gandon、Louis Fensterbank

  DOI：10.1039/b919240a

  日期：——

  1,6-Enynes can be transformed into vinylidenecyclopentanes via gold-promoted 5-exo dig cyclisation followed by 1,5-hydride or -alkoxide shift.

  可以通过金促进的5-exo dig环化反应，然后进行1,5-氢化物或-烷氧化物的转化，将1,6-烯炔转化为亚乙烯基亚环戊烷。
• Synthesis of Cyclopropyl-Substituted Furans by Brønsted Acid Promoted Cascade Reactions
  作者：J. Stephen Clark、Filippo Romiti、Kirsten F. Hogg、Malai Haniti S. A. Hamid、Sven C. Richter、Alistair Boyer、Joanna C. Redman、Louis J. Farrugia

  DOI：10.1002/anie.201500625

  日期：2015.5.4

  Chloroacetic acid promotes an efficient and diastereoselective intramolecular cascade reaction of electron‐deficient ynenones to deliver products featuring a 2,3,5‐trisubstituted furan bearing a fused cyclopropyl substituent at the 5‐position. Synthetically relevant polycyclic building blocks featuring rings of various sizes and heteroatoms have been synthesized in high yield using this mild acid‐catalyzed

  氯乙酸可促进电子不足的炔烃的高效非对映选择性分子内级联反应，以提供具有在5位带有稠合环丙基取代基的2,3,5-三取代呋喃的产物。使用这种温和的酸催化反应，可以高收率合成具有各种尺寸和杂原子的环的合成相关多环结构单元。