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Copper(I)-catalyzed homocoupling reaction of terminal alkynes in supercritical CO2.

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Title: Copper(I)-catalyzed homocoupling reaction of terminal alkynes in supercritical CO2.
Authors: Fa-Wang Li1, Quan-Ling Suo1 szj010062@163.com, Hai-Long Hong1, Ning Zhu1, Ya-Qi Wang1, Lin-Lin Guo1, Li-Min Han1
Source: Journal of Supercritical Fluids. Aug2014, Vol. 92, p70-74. 5p.
Subjects: Copper catalysts, Coupling reactions (Chemistry), Alkynes, Supercritical carbon dioxide, Organic solvents, Chemical kinetics, Solubility
Abstract: An efficient method for CuCl-catalyzed homocoupling reaction of terminal alkynes in the synthesis of symmetric 1,3-diynes has been developed in supercritical CO2 (ScCO2) without organic solvent. Homocoupling of various terminal alkynes (solid or liquid) could afford the corresponding products in moderate to excellent yields. In addition, ScCO2 play the role of reactive solvent, and DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) acts as the key additive for homocoupling reactions of terminal alkynes, which enhanced the reaction rate and the solubility of copper(I) catalyst in ScCO2. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Supercritical Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 97627664
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Supercritical+Fluids%22">Journal of Supercritical Fluids</searchLink>. Aug2014, Vol. 92, p70-74. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Copper+catalysts%22">Copper catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Coupling+reactions+%28Chemistry%29%22">Coupling reactions (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Alkynes%22">Alkynes</searchLink><br /><searchLink fieldCode="DE" term="%22Supercritical+carbon+dioxide%22">Supercritical carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+solvents%22">Organic solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+kinetics%22">Chemical kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Solubility%22">Solubility</searchLink>
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  Data: An efficient method for CuCl-catalyzed homocoupling reaction of terminal alkynes in the synthesis of symmetric 1,3-diynes has been developed in supercritical CO2 (ScCO2) without organic solvent. Homocoupling of various terminal alkynes (solid or liquid) could afford the corresponding products in moderate to excellent yields. In addition, ScCO2 play the role of reactive solvent, and DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) acts as the key additive for homocoupling reactions of terminal alkynes, which enhanced the reaction rate and the solubility of copper(I) catalyst in ScCO2. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Journal of Supercritical Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.supflu.2014.05.005
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 70
    Subjects:
      – SubjectFull: Copper catalysts
        Type: general
      – SubjectFull: Coupling reactions (Chemistry)
        Type: general
      – SubjectFull: Alkynes
        Type: general
      – SubjectFull: Supercritical carbon dioxide
        Type: general
      – SubjectFull: Organic solvents
        Type: general
      – SubjectFull: Chemical kinetics
        Type: general
      – SubjectFull: Solubility
        Type: general
    Titles:
      – TitleFull: Copper(I)-catalyzed homocoupling reaction of terminal alkynes in supercritical CO2.
        Type: main
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          Name:
            NameFull: Fa-Wang Li
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            NameFull: Quan-Ling Suo
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            NameFull: Hai-Long Hong
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            NameFull: Ning Zhu
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            NameFull: Ya-Qi Wang
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            NameFull: Lin-Lin Guo
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            NameFull: Li-Min Han
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            – D: 01
              M: 08
              Text: Aug2014
              Type: published
              Y: 2014
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              Value: 08968446
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              Value: 92
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            – TitleFull: Journal of Supercritical Fluids
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