2,2-二甲基-4-戊炔-1-醇 | 107540-03-4

• 分子结构分类: 有机化合物 - 乙炔化物
• 中文名称: 2,2-二甲基-4-戊炔-1-醇
• 英文名称: 2,2-dimethylpent-4-yn-1-ol
• 英文别名: 2,2-dimethyl-4-pentyn-1-ol
• CAS: 107540-03-4
• 化学式: C₇H₁₂O
• mdl: MFCD19441316
• 分子量: 112.172
• InChiKey: JZQWKSNREHAZIT-UHFFFAOYSA-N

物化性质

• 沸点：
  173.5±13.0 °C(Predicted)
• 密度：
  0.894±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.714
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,2-二甲基-4-戊炔-1-醇 在 吡啶 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 生成 5-Cyano-4,4-dimethylpentyne
  参考文献：
  名称：

  New approaches to the synthesis of alkyl-substituted enol lactone systems, inhibitors of the serine protease elastase

  摘要：

  We have synthesized a series of alkyl-substituted enol lactones designed to act as mechanism-based inhibitors of human neutrophil elastase (HLE). General methods were developed for the preparation of alpha- and beta-alkyl-substituted 5-hexynoic acids by the bromoform reaction on the corresponding alkynoic methyl ketone, prepared by an Eschenmoser-Tanabe fragmentation sequence from a suitably substituted cyclohexenone. By this method, beta-methyl- and beta,beta-dimethyl-5-hexynoic acids were synthesized from commercially available isophorone and 3,5-dimethyl-2-cyclohexen-1-one, respectively. Alpha-Substituted 5-hexynoic acids were prepared from 3-ethoxy-2-cyclohexen-1-one, using a novel ZnCl2-mediated alkylation that we developed; this method gives high yields of alpha'-alkylation products, even with secondary halides. The most efficient method for the preparation of alpha-substituted 5-hexynoic acids involved a four-reaction sequence-alkylation of the alpha-substituted ester with 1,4-dibromobutane, elimination, bromination and bisdehydrobromination-that proceeded in high overall yield. Protio enol lactonizations were performed with mercury(II) catalysis in CH2Cl2 or CH2Cl2-H2O. Stereo-selective Z-bromo enol lactonization was carried out by Br+-induced lactonization in the presence of Ag+. E-Bromo enol lactonization with N-bromosuccinimide in CH2Cl2 in the presence of a small amount of water gave better yields and shorter reaction times than the traditional anhydrous conditions. In studies of the inhibitory activity of these lactones toward several proteases (reported in full elsewhere), we found that the alpha-alkyl-substituted protio and bromo enol lactones 1-3 were very good inhibitors of HLE, with k(a)/K(i) values ranging from 14 500 to 37 500 M-1 s-1; the beta-alkyl-substituted enol lactones 5-8 showed only moderate inhibition of HLE.

  DOI：

  10.1021/jo00059a049
• 作为产物：
  描述：

  methyl 2,2-dimethylpent-4-ynoate 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 12.0h， 以87%的产率得到2,2-二甲基-4-戊炔-1-醇
  参考文献：
  名称：

  铂ω-烯基化合物作为化学气相沉积前体。铂的热分解[CH的机理的研究2 CME 2 CH 2 CH = CH 2 ] 2在溶液中，快速成核来源

  摘要：

  化合物顺式-双（η 1，η 2 -2,2-二甲基戊-4-烯-1-基）铂，铂[CH 2 CME 2 CH 2 CH = CH 2 ] 2（3），是最近发现的化学气相沉积（CVD）前体，用于在各种基材上沉积高度光滑的铂薄膜，而没有成核延迟。本文介绍了3在溶液中加热时发生反应的途径的详细机理研究。在90至130°C之间的各种溶剂中，3通过分解成3个戊烯基配体中的氢原子，分解生成约1当量的4,4-二甲基戊烯。“额外的”氢原子是通过其他戊烯基配体的脱氢而产生的。这些脱氢配体中的一些以甲基取代的亚甲基环丁烷和环丁烯的形式释放。同位素标记和动力学研究的结合表明，3可以通过C–H烯丙基和烯烃C–H键的活化来分解，得到瞬态氢化铂中间体，然后通过还原消除步骤形成戊烯产物，但确切的机理是溶剂依赖性。在C 6 F 6，溶剂缔合发生在C–H键活化之前，而热解的速率决定步骤最有可能形成Ptσ络合物。在烃类溶剂中，在C

  DOI：

  10.1021/acs.organomet.0c00542

文献信息

• Synthesis of [6,6,m]-Tricyclic Compounds via [4+2] Cycloaddition with Au or Cu Catalyst
  作者：Chang Ho Oh、Juyeon Kang、Seunghwan Ham、Chaehyeon Seong

  DOI：10.1055/a-1479-6005

  日期：2021.6

  We synthesized [6,6,6]- and [6,6,7]-tricyclic compounds via intramolecular [4+2] cycloaddition by gold or copper catalysts. Substrates for cyclization were prepared by coupling reactions between eight types of diyne and four types of aromatic moieties. We have successfully synthesized eleven tricyclic compounds.

  我们通过金或铜催化剂通过分子内[4 + 2]环加成反应合成了[6,6,6]-和[6,6,7]-三环化合物。通过八种二炔和四种芳香族部分之间的偶联反应来制备用于环化的底物。我们已经成功合成了11种三环化合物。
• Synthesis of 5-Iodo-1,2,3,4-tetrahydropyridines by Rhodium-Catalyzed Tandem Nucleophilic Attacks Involving 1-Sulfonyl-1,2,3-triazoles and Iodides
  作者：Zengming Man、Haican Dai、Yinping Shi、Dongdong Yang、Chuan-Ying Li

  DOI：10.1021/acs.orglett.6b02428

  日期：2016.10.7

  Sodium iodide is used for the first time as a nucleophile to trap an α-imino rhodium carbene, which triggers a tandem process involving intermolecular nucleophilic attack and intramolecular SN2 reaction. A series of 5-iodo-1,2,3,4-tetrahydropyridines are obtained in high yield, and the synthetic utility of the products is demonstrated in cross-coupling reactions and the construction of biorelated polycyclic

  碘化钠首次用作亲核试剂来捕获α-亚氨基铑卡宾，这引发了涉及分子间亲核攻击和分子内S N 2反应的串联过程。以高收率获得了一系列的5-碘-1,2,3,4-四氢吡啶，并且在交叉偶联反应和生物相关多环化合物的构建中证明了该产物的合成效用。
• [EN] MACROCYCLIC BROAD SPECTRUM ANTIBIOTICS<br/>[FR] ANTIBIOTIQUES MACROCYCLIQUES À LARGE SPECTRE
  申请人：RQX PHARMACEUTICALS INC

  公开号：WO2017084630A1

  公开（公告）日：2017-05-26

  Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of bacterial type 1 signal peptidase (SpsB), an essential protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.

  本文提供了抗菌化合物，其中在某些实施例中，这些化合物具有广谱生物活性。在各种实施例中，这些化合物通过抑制细菌类型1信号肽酶（SpsB）发挥作用，这是细菌中的一种必需蛋白质。还提供了使用所述化合物的药物组合物和治疗方法。
• Rhodium(I)-Catalyzed Ring-Closing Reaction of Allene-Alkene-Alkynes: One-Step Construction of Tricyclo[6.4.0.0^2,6 ] and Bicyclo[6.3.0] Skeletons from Linear Carbon Chains
  作者：Yasuaki Kawaguchi、Asami Nagata、Kei Kurokawa、Haruna Yokosawa、Chisato Mukai

  DOI：10.1002/chem.201801239

  日期：2018.5.2

  afforded bicyclo[6.3.0]undecatriene derivatives instead of tricyclic compounds, the latter of which are well known as a basic skeleton of naturally occurring octanoids. On the basis of two experiments with deuterated substrates, a plausible reaction mechanism for the construction of these products was proposed.

  在回流的甲苯中用[RhCl（CO）2 ] 2处理十二碳三烯炔衍生物，实现了环异构化，生成了三环[6.4.0.0 2,6 ]十二碳二烯。然而，一碳短的十一碳三烯炔衍生物可以提供双环[6.3.0]十一碳三烯衍生物，而不是三环化合物，后者是众所周知的天然辛烷类化合物的基本骨架。基于氘化底物的两个实验，提出了构建这些产物的合理反应机理。
• Synthesis of 6-Substituted Piperidin-3-ones via Rh(II)-Catalyzed Transannulation of <i>N</i>-Sulfonyl-1,2,3-triazoles with Electron-Rich Aromatic Nucleophiles
  作者：Yang Li、Ran Zhang、Arshad Ali、Jing Zhang、Xihe Bi、Junkai Fu

  DOI：10.1021/acs.orglett.7b01180

  日期：2017.6.16

  A highly diastereoselective rhodium(II)-catalyzed transannulation of aldehyde-tethered N-sulfonyl triazoles with electron-rich aromatic nucleophiles is reported for the first time to afford functionalized 6-substituted piperidin-3-ones. The reaction has a broad substrate scope including both aliphatic and aromatic N-sulfonyl-1,2,3-triazoles together with various aromatic nucleophiles. The addition

  首次报道了高度非对映选择性的铑（II）催化的醛基化N-磺酰基三唑与富电子芳族亲核试剂的转环反应，提供了功能化的6-取代的哌啶-3-酮。该反应具有广泛的底物范围，包括脂族和芳族N-磺酰基-1,2,3-三唑以及各种芳族亲核试剂。已证明添加催化量的路易斯酸对于提高产率至关重要。通过采用这种方法，可以获得带有季碳的几乎不易获得的哌啶-3-酮。