3,6,9-Trimethoxy-3,6,9-triphenylundeca-1,4,7,10-tetrayne | 803745-13-3

• 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: 3,6,9-Trimethoxy-3,6,9-triphenylundeca-1,4,7,10-tetrayne
• 英文别名: (3,6,9-Trimethoxy-3,9-diphenylundeca-1,4,7,10-tetrayn-6-yl)benzene；(3,6,9-trimethoxy-3,9-diphenylundeca-1,4,7,10-tetrayn-6-yl)benzene
• CAS: 803745-13-3
• 化学式: C₃₂H₂₆O₃
• 分子量: 458.557
• InChiKey: RHKHTABMKSQLOD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  35
• 可旋转键数：
  12
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-丁炔二醛 、 3,6,9-Trimethoxy-3,6,9-triphenylundeca-1,4,7,10-tetrayne 在 正丁基锂 、 hexacarbonyldicobalt 、 ammonium cerium(IV) nitrate 作用下， 以 四氢呋喃 、 正己烷 、 丙酮 为溶剂， 以50 mg的产率得到1,4,13-trimethoxy-1,4,13-triphenylcyclopentadeca-2,5,8,11,14-pentayne-7,10-diol
  参考文献：
  名称：

  Synthesis and stereochemical resolution of functional [5]pericyclynes

  摘要：

  Three different kinds of ring carbo-mers of [5]cyclitol ethers were targeted as challenging examples of functional [5]pericyclynes. Three tertiary pentaaryl-carbo-[5]cyclitol methyl ethers were synthesized through a [11 + 4] ring-closing double addition of triphenyl- and tri-p-anisyl-undecatetrayn-diides to dibenzoyl acetylene. These compounds, obtained as oily mixtures of stereoisomers, are stable and can behave as acetylenic ligands of one or two Co-2(CO)(6) units. NMR analysis reveals that the broad diasteroisomeric dispersity of a triether, is consistently reduced in the symmetrized pentaether. Three bis-secondary triaryl-carbo-[5]cyclitol methyl ethers with adjacent CH(OR) vertices were synthesized through a similar [11 + 4] ring-closing process, where the same tetrayn-diides add to both the carbaldehyde ends of the (eta(2)-OCH-C=C-CHO)Co-2(CO)(6) complex. Despite the possibility of tautomeric isomerization, the occurrence of two adjacent bis-propargylic carbinol vertices does not diminish the stability of the [5]pericyclyne framework. Finally, two bis-secondary carbo-[5]cyclitol methyl ethers with non-adjacent CH(OH) vertices were synthesized through an alternative [10 + 5] ring-closing process. The bis-secondary carbo-[5]cyclitols are regarded as isohypsic equivalents of the challenging [C,C](5)carbo-cyclopentadienyl cation. A diphenyl-hexaoxy-[5]pericyclyne with two non-adjacent secondary carbinol vertices was also prepared through a [10 + 5] ring-closing strategy: this molecule is an isohypsic equivalent of the previously calculated zwitterionic carbo-cyclopentadien one, which could be observed as a DCI/NH3-MS fragment after treatment with SnCl2/HCl. Analytical HPLC showed that the C-11 triphenyl-undecatetrayne precursor of the [11 + 4] strategy was obtained as a statistical 1:2:1 mixture of the three possible diastereoisomers. Semi-preparative HPLC allowed for the resolution of this mixture. The pure major diastereoisomer was employed to prepare a partly resolved sample of pentamethoxy-pentaphenyl-[5]pericyclyne. Analytical HPLC showed that the latter corresponds to the statistical distribution of the expected three residual diastereoisomers. Semi-preparative HPLC finally afforded samples of diastereoisomerically pure pentamethoxy[5]pericyclyne as crystalline solids. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.07.052
• 作为产物：
  描述：

  Bis(trimethylsilyl)-3,6,9-trimethoxy-3,6,9-triphenylundeca-1,4,7,10-tetrayne 在 potassium carbonate 作用下， 以 甲醇 为溶剂， 反应 1.0h， 以95%的产率得到3,6,9-Trimethoxy-3,6,9-triphenylundeca-1,4,7,10-tetrayne
  参考文献：
  名称：

  Solid-Phase Synthesis of Homogeneous Ruthenium Catalysts on Silica for the Continuous Asymmetric Transfer Hydrogenation Reaction

  摘要：

  The solid-phase synthesis of new asymmetric transfer hydrogenation catalysts as well as the use of these silica supported systems in batch and flow reactors is reported. The ruthenium complex of NH-benzyl-(1R,2S)-(-)-norephedrine covalently tethered to silica showed a high activity and enantioselectivity in the reduction of acetophenone. In three consecutive batchwise catalytic runs, we obtained ee values 88%. In a continuous flow reactor, a very constant catalytic activity was observed; no catalyst deactivation occurred over a period of one week, This has been ascribed to successful site isolation. Using optimized conditions in this flow reactor, the ee was as high as 90% at 95% conversion, The supported catalysts generally show the same trend in catalyst performance as in solution. The viability of our approach was further shown in one example, the ruthenium(II) complex of (1S,2R)-(+)-2-amino-1,2-diphenylethanol, for which an enantiomeric excess of 58% was observed, which is nearly three times higher than its homogeneous analogue.

  DOI：

  10.1002/1521-3765(20010316)7:6<1202::aid-chem1202>3.3.co;2-i

文献信息

• Synthesis and stereochemical resolution of functional [5]pericyclynes
  作者：Luc Maurette、Christine Tedeschi、Emmanuelle Sermot、Michèle Soleilhavoup、Fatima Hussain、Bruno Donnadieu、Remi Chauvin

  DOI：10.1016/j.tet.2004.07.052

  日期：2004.10

  Three different kinds of ring carbo-mers of [5]cyclitol ethers were targeted as challenging examples of functional [5]pericyclynes. Three tertiary pentaaryl-carbo-[5]cyclitol methyl ethers were synthesized through a [11 + 4] ring-closing double addition of triphenyl- and tri-p-anisyl-undecatetrayn-diides to dibenzoyl acetylene. These compounds, obtained as oily mixtures of stereoisomers, are stable and can behave as acetylenic ligands of one or two Co-2(CO)(6) units. NMR analysis reveals that the broad diasteroisomeric dispersity of a triether, is consistently reduced in the symmetrized pentaether. Three bis-secondary triaryl-carbo-[5]cyclitol methyl ethers with adjacent CH(OR) vertices were synthesized through a similar [11 + 4] ring-closing process, where the same tetrayn-diides add to both the carbaldehyde ends of the (eta(2)-OCH-C=C-CHO)Co-2(CO)(6) complex. Despite the possibility of tautomeric isomerization, the occurrence of two adjacent bis-propargylic carbinol vertices does not diminish the stability of the [5]pericyclyne framework. Finally, two bis-secondary carbo-[5]cyclitol methyl ethers with non-adjacent CH(OH) vertices were synthesized through an alternative [10 + 5] ring-closing process. The bis-secondary carbo-[5]cyclitols are regarded as isohypsic equivalents of the challenging [C,C](5)carbo-cyclopentadienyl cation. A diphenyl-hexaoxy-[5]pericyclyne with two non-adjacent secondary carbinol vertices was also prepared through a [10 + 5] ring-closing strategy: this molecule is an isohypsic equivalent of the previously calculated zwitterionic carbo-cyclopentadien one, which could be observed as a DCI/NH3-MS fragment after treatment with SnCl2/HCl. Analytical HPLC showed that the C-11 triphenyl-undecatetrayne precursor of the [11 + 4] strategy was obtained as a statistical 1:2:1 mixture of the three possible diastereoisomers. Semi-preparative HPLC allowed for the resolution of this mixture. The pure major diastereoisomer was employed to prepare a partly resolved sample of pentamethoxy-pentaphenyl-[5]pericyclyne. Analytical HPLC showed that the latter corresponds to the statistical distribution of the expected three residual diastereoisomers. Semi-preparative HPLC finally afforded samples of diastereoisomerically pure pentamethoxy[5]pericyclyne as crystalline solids. (C) 2004 Elsevier Ltd. All rights reserved.
• Solid-Phase Synthesis of Homogeneous Ruthenium Catalysts on Silica for the Continuous Asymmetric Transfer Hydrogenation Reaction
  作者：Albertus J. Sandee、Daniëlle G. I. Petra、Joost N. H. Reek、Paul C. J. Kamer、Piet W. N. M. van Leeuwen

  DOI：10.1002/1521-3765(20010316)7:6<1202::aid-chem1202>3.3.co;2-i

  日期：2001.3.16

  The solid-phase synthesis of new asymmetric transfer hydrogenation catalysts as well as the use of these silica supported systems in batch and flow reactors is reported. The ruthenium complex of NH-benzyl-(1R,2S)-(-)-norephedrine covalently tethered to silica showed a high activity and enantioselectivity in the reduction of acetophenone. In three consecutive batchwise catalytic runs, we obtained ee values 88%. In a continuous flow reactor, a very constant catalytic activity was observed; no catalyst deactivation occurred over a period of one week, This has been ascribed to successful site isolation. Using optimized conditions in this flow reactor, the ee was as high as 90% at 95% conversion, The supported catalysts generally show the same trend in catalyst performance as in solution. The viability of our approach was further shown in one example, the ruthenium(II) complex of (1S,2R)-(+)-2-amino-1,2-diphenylethanol, for which an enantiomeric excess of 58% was observed, which is nearly three times higher than its homogeneous analogue.