tetradeca-6,8-diyne | 16387-72-7

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: tetradeca-6,8-diyne
• 英文别名: 6,8-tetradecadiyne
• CAS: 16387-72-7
• 化学式: C₁₄H₂₂
• 分子量: 190.329
• InChiKey: NQFVLJHKEHDSGT-UHFFFAOYSA-N

物化性质

• 熔点：
  1°C
• 沸点：
  275.85°C (estimate)
• 密度：
  0.8699

计算性质

• 辛醇/水分配系数(LogP)：
  5.9
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  tetradeca-6,8-diyne 在 tris(2,2'-bipyridine)nickel(II) tetrafluoroborate 、 二氧化碳 、 重水 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以60%的产率得到(Z)-6,7-dideuteriotetradec-6-en-8-yne
  参考文献：
  名称：

  Activation of carbon dioxide: nickel-catalyzed electrochemical carboxylation of diynes

  摘要：

  The simultaneous activation of carbon dioxide and diynes by electrogenerated LNi(0) complexes (L = bpy, pentamethyldiethylenetriamine: PMDTA) enables the selective incorporation of one molecule of CO2 into the unsaturated systems and the preparative-scale electrosyntheses of carboxylic acids. A series of nonconjugated diynes afforded selectively linear or cyclic adducts depending on the ligand. Diynes bearing both a terminal and an internal triple bond gave exclusive CO2 incorporation into the terminal alkynyl group, regioselectively at the 2-position. The electrocarboxylation of 1,3-diynes with the Ni-PMDTA catalytic system yielded, regio- and stereoselectively, (E)-2-vinylidene-3-yne carboxylic acids in one step. The electrosyntheses were carried out in single-compartment cells fitted with a consumable magnesium anode, and utilized a catalytic amount of an air-stable Ni(II) complex as the catalyst precursor. Cyclic voltammetry studies revealed that both carbon dioxide and the diynes are able to coordinate to LNi(0)-generated species in DMF.

  DOI：

  10.1021/jo00061a038
• 作为产物：
  描述：

  1-庚炔 在 cyclopalladated ferrocenylimine copper(l) iodide 、 air 、 potassium acetate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 以88%的产率得到tetradeca-6,8-diyne
  参考文献：
  名称：

  环戊二烯基二茂铁基亚胺：末端炔的均相偶联和Sonogashira反应的有效催化剂

  摘要：

  已经描述了使用环palpalated的二茂铁基亚胺1或2 / CuI作为空气中的催化剂进行末端炔烃均相偶联的新途径。该催化体系可以耐受几个官能团。的钯环2中的存在Ñ -Bu 4 NBR作为添加剂可以适用于芳基碘化物，芳基溴化物进行Sonogashira交叉偶联反应，和一些活化的芳基氯化物与胺和铜-自由条件下末端炔烃，主要是为了给出中等至极好的产量。

  DOI：

  10.1016/j.tet.2006.12.064

文献信息

• NNN-pincer-copper complex immobilized on magnetic nanoparticles as a powerful hybrid catalyst for aerobic oxidative coupling and cycloaddition reactions in water
  作者：Nasrin Zohreh、Mahboobeh Jahani

  DOI：10.1016/j.molcata.2016.11.007

  日期：2017.1

  such as SEM, TEM, FT-IR, TGA, ICP, XRD, and elemental analysis. The finely engineered supported catalyst is employed in the aerobic oxidative coupling of terminal alkynes and click reaction using only 0.38 and 0.04 mol% catalyst, respectively. All reactions perform under solvent-free condition or green solvent H 2 O. Also, the catalyst is readily recovered and reused for up to 8 and 6 subsequent runs

  摘要 描述了一种简单可靠的方法，用于制备第一个对表面组成具有高度控制的非均相 NNN-钳形铜杂化催化剂。该策略依赖于 2-氨基吡啶与三聚氯氰功能化磁性纳米粒子的共价键合，然后与 CuI 络合。这些声明通过不同的表征方法得到证实，例如 SEM、TEM、FT-IR、TGA、ICP、XRD 和元素分析。精细设计的负载型催化剂用于末端炔烃的有氧氧化偶联和点击反应，分别仅使用 0.38 和 0.04 mol% 的催化剂。所有反应均在无溶剂条件或绿色溶剂 H 2 O 下进行。此外，
• Visual and tear function improvement after superficial phototherapeutic keratectomy (PTK) for mid-stromal corneal scarring
  作者：Murat Dogru、Chikako Katakami、Masato Miyashita、Etsuko Hida、Mamoru Uenishi、Kazuaki Tetsumoto、Sanae Kanno、Teruo Nishida、Akio Yamanaka

  DOI：10.1038/eye.2000.204

  日期：2000.9

  Purpose To study the changes in visual and tear film function following superficial excimer laser phototherapeutic keratectomy in patients with mid-stromal corneal scars. Methods Fourteen eyes of 14 patients with mid-stromal corneal scars seen at the Department of Ophthalmology at Kobe Kaisei Hospital underwent superficial phototherapeutic keratectomy (PTK). The subjects underwent routine ophthalmic examinations, corneal sensitivity measurements, tear film break-up time (BUT), Schirmer test and tear film lipid layer interferometry. Thirty eyes of 15 normal control subjects were also studied. The patients and the control subjects were compared for pre-PTK tear function parameters and tear film lipid layer interferometry grade. The alterations in these parameters within 6 months following PTK were also determined. Results Visual improvement was achieved in 12 eyes (86%). A hyperopic shift was observed in all eyes. The average pre-PTK corneal sensitivity and tear film BUT were lower in patients compared with control subjects before PTK. Tear film lipid layer interferometry grades were also higher in the patients than the controls before PTK. All these parameters improved gradually and significantly after PTK. Schirmer test results did not show any significant alterations after PTK. Conclusion We conclude that PTK is an effective means of treating corneal scars and attaining visual improvement, even in cases with deeper corneal involvement, and may obviate the need for corneal transplantation. Simultaneous improvements in corneal sensitivity and tear film stability suggest favourable effects of PTK on the ocular surface.

  目的：研究浅层准分子激光角膜切削术(PTK)后，中层基质性角膜瘢痕患者视觉和泪膜功能变化。方法：在神户海星医院眼科，14名中层基质性角膜瘢痕患者接受浅层PTK手术，共14眼。术前进行常规眼科检查，测量角膜敏感性、泪膜破裂时间(BUT)、泪液分泌测试和泪膜脂质层干涉测量。还研究了15例正常对照者的共30眼。比较术前患者和对照者的泪膜功能参数和泪膜脂质层干涉测量分级。术后6个月内这些参数的变化也进行了研究。结果：12眼(86%)改善了视力。所有眼出现远视漂移。术前患者角膜敏感性和泪膜BUT低于对照组。术前患者的泪膜脂层干涉测量分级高于对照组眼。这些参数术后逐渐显著提高。PTK后Schaumberg试验结果没有显著变化。结论：，结论:我们认为PTK是治疗角膜瘢痕并获得视力提高的有效方法，即便是伴有更深层角膜病变者，并且可能不再需要进行角膜移植。角膜敏感性和泪膜稳定性同时提高，表明PTK对眼表有良好的效应。
• Cobalt(<scp>ii</scp>)-catalyzed hydroarylation of 1,3-diynes and internal alkynes with picolinamides promoted by alcohol
  作者：Yuan Gao、Mengfan Zhang、Chaoyu Wang、Zhen Yang、Xianqiang Huang、Ruokun Feng、Chenze Qi

  DOI：10.1039/d0cc05616b

  日期：——

  The Co(II)-catalyzed selective C–H alkenylation of picolinamides with 1,3-diynes has been developed. This protocol can be applied to a variety of 1,3-diynes. In addition, both symmetrical and unsymmetrical internal alkynes were well tolerated, affording the corresponding alkenyl arenes. Moreover, control experiments indicated that C–H bond cleavage may be involved in the rate-determining step. Furthermore

  已经开发了由Co（II）催化的吡啶甲酰胺与1,3-二炔的C–H选择性烯基化反应。该协议可以应用于各种1,3-二炔。此外，对称和不对称的内部炔烃均具有良好的耐受性，可提供相应的烯基芳烃。此外，对照实验表明，CH键的断裂可能参与了速率测定步骤。此外，当使用氘化醇作为溶剂时，获得了氘结合产物，这表明醇对于最终的质子分解是必不可少的。
• An alternative CuCl–piperidine-catalyzed oxidative homocoupling of terminal alkynes affording 1,3-diynes in air
  作者：Qingwei Zheng、Ruimao Hua、Youzhi Wan

  DOI：10.1002/aoc.1604

  日期：——

  CuCl with the use of a catalytic amount of piperidine as additive shows high catalytic activity for the oxidative homocoupling reactions of terminal alkynes in toluene at 60 °C in air to afford 1,3‐diynes in high yields. Copyright © 2009 John Wiley & Sons, Ltd.

  使用催化量的哌啶作为添加剂的CuCl在60°C的空气中对末端炔烃在甲苯中的氧化均偶联反应显示出高催化活性，从而以高收率提供1,3-二炔。版权所有©2009 John Wiley＆Sons，Ltd.
• Copper(II)/Palladium(II) catalysed highly selective cross-coupling of terminal alkynes in supercritical carbon dioxide
  作者：Yunlong Wang、Quanling Suo、Limin Han、Linlin Guo、Yaqi Wang、Fawang Li

  DOI：10.1016/j.tet.2018.02.060

  日期：2018.4

  An efficient protocol for the synthesis of unsymmetrical 1,3-diynes was developed using supercritical carbon dioxide (ScCO2) as the solvent. The direct coupling of two different terminal alkynes is catalysed by a bimetallic catalyst, CuCl2·2H2O/Pd(NH3)4Cl2·H2O, in the presence of the base tetramethylethylenediamine (TMEDA) and O2. In pure ScCO2, our bimetallic catalytic system maintains high activity

  使用超临界二氧化碳（ScCO 2）作为溶剂，开发了一种有效的合成不对称1,3-二炔的方法。在碱性四甲基乙二胺（TMEDA）和O 2的存在下，双金属催化剂CuCl 2 ·2H 2 O / Pd（NH 3）4 Cl 2 ·H 2 O催化两个不同的末端炔烃的直接偶联。在纯ScCO 2中，我们的双金属催化系统可在较宽的底物范围内保持高活性，从而以高至优异的产率提供不对称的1,3-二炔。在所提出的反应机理中，铜（II）和钯（II）中心之间的协同合作是造成交叉偶联优异选择性的原因。