Bibliographic Details
| 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] |
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| Database: |
Engineering Source |
