阿拉丁SCI论文搜索工具

JOURNAL OF CHEMICAL RESEARCH · 2016 · IF 0.661

CuSCN-Mediated Homocoupling of Terminal Alkynes to 1,3-Diynes Using 4-Nitrobenzenediazonium Tetrafluoroborate as Oxidant

Haidong Liu,Bo Chen,Jin Cai,Junqing Chen,Min Ji

Eleven 1,3-diynes have been prepared by a highly efficient base-catalysed homocoupling of terminal alkynes mediated by a novel combination of CuSCN/4-nitrobenzenediazonium tetrafluoroborate.

研究领域: 有机化学 · 合成化学

✓ 已验证 DOI 高影响因子

查看原文查看 PubMed

TETRAHEDRON · 2018 · IF 2.377

Copper(II)/Palladium(II) catalysed highly selective cross-coupling of terminal alkynes in supercritical carbon dioxide

Yunlong Wang,Quanling Suo,Limin Han,Linlin Guo,Yaqi Wang,Fawang Li

An efficient protocol for the synthesis of unsymmetrical 1,3-diynes was developed using supercritical carbon dioxide (ScCO 2 ) as the solvent. The direct coupling of two different terminal alkynes is catalysed by a bimetallic catalyst , CuCl 2 ·2H 2 O/Pd(NH 3 ) 4 Cl 2 ·H 2 O, in the presence of the base tetramethylethylenediamine (TMEDA) and O 2 . In pure ScCO 2 , our bimetallic catalytic system maintains high activity over a wide substrate scope to provide unsymmetrical 1,3-diynes in good to excellent yields. In the proposed reaction mechanism, the synergistic cooperation between copper(II) and palladium(II) centres is responsible for the superior selectivity of the cross-coupling.

研究领域: 有机化学 · 绿色化学

✓ 已验证 DOI 高影响因子

查看原文查看 PubMed

查找使用阿拉丁产品的科研文献

与阿拉丁产品相关的已发表科研成果

热门产品

CuSCN-Mediated Homocoupling of Terminal Alkynes to 1,3-Diynes Using 4-Nitrobenzenediazonium Tetrafluoroborate as Oxidant

Copper(II)/Palladium(II) catalysed highly selective cross-coupling of terminal alkynes in supercritical carbon dioxide