Synthesis of Unsymmetrical 1,3-Diynes via Pd/Cu-Catalyzed Cross-Coupling of Terminal Alkynes at Room Temperature

2016 ◽  
Vol 34 (9) ◽  
pp. 895-900 ◽  
Author(s):  
Yashuai Liu ◽  
Ping Liu ◽  
Ningning Gu ◽  
Jianwei Xie ◽  
Yan Liu ◽  
...  
2016 ◽  
Vol 18 (16) ◽  
pp. 4526-4530 ◽  
Author(s):  
Arunachalam Sagadevan ◽  
Ping-Chiang Lyu ◽  
Kuo Chu Hwang

An efficient and eco-friendly approach to Csp–Csp cross-coupling of terminal alkynes for the construction of unsymmetrical conjugated diynes via a visible-light-induced CuCl catalysed process at room temperature is described.


2018 ◽  
Vol 42 (3) ◽  
pp. 133-137 ◽  
Author(s):  
Zhaotao Xu ◽  
Jinting Ai ◽  
Mingzhong Cai

An efficient heterogeneous palladium(0)-catalysed cross-coupling of 1-bromoalkynes with terminal alkynes was achieved in DMF at room temperature in the presence of 5 mol% of MCM-41-immobilised bidentate phosphine palladium(0) complex [MCM-41-2P-Pd(0)] and 2 mol% of CuI with Et3N as base, yielding a variety of unsymmetrical 1,3-diynes in moderate to good yields. This heterogeneous palladium(0) complex could be easily recovered by a simple filtration of the reaction solution and recycled at least seven times without significant decrease in activity.


ChemInform ◽  
2016 ◽  
Vol 47 (52) ◽  
Author(s):  
Yashuai Liu ◽  
Ping Liu ◽  
Ningning Gu ◽  
Jianwei Xie ◽  
Yan Liu ◽  
...  

2013 ◽  
Vol 634-638 ◽  
pp. 612-615 ◽  
Author(s):  
Yong Xie ◽  
Bi Feng He ◽  
Nian Yu Huang ◽  
Wei Qiao Deng

A Cu-conjugated microporous polymer catalyst (CMP-Cu) was designed and prepared via Sonogashira-Hagihara cross-coupling of 3,8-dibromo-1,10-phenanthroline with 1,3,5-triethyny benzene in toluene. The CMP-Cu showed a catalytic activity for direct carboxylation of terminal alkynes with CO2 in the presence of K2CO3/Cs2CO3 at mild conditions. Several propiolic acids (such as 3-phenylpropiolic acid, 3-(4-nitrophenyl)propiolic acid and 4,4-dimethyl-2-pentynoic acid) have been prepared in a simple and feasible method at room temperature and atmospheric pressure. This catalyst is attractive for CO2 transformation.


Author(s):  
Pan Xie ◽  
Cheng Xue ◽  
Cancan Wang ◽  
Dongdong Du ◽  
Sanshan Shi

A CF3SO2Na/Pd(OAc)2 co-catalyzed strategy is developed to produce aryl ketones via visible-light-induced decarboxylative cross-coupling of α-oxocarboxylic acids and aryl boronic acids. This process was perfomed under air at room temperature,...


Author(s):  
Mingyu Liu ◽  
Tianhua Tang ◽  
Omar Apolinar ◽  
Rei Matsuura ◽  
Carl A. Busacca ◽  
...  

2013 ◽  
Vol 49 (15) ◽  
pp. 1488 ◽  
Author(s):  
Philip Andrews ◽  
Christopher M. Latham ◽  
Marc Magre ◽  
Darren Willcox ◽  
Simon Woodward

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