A new CuAl–hydrotalcite catalyzed homocoupling reaction of terminal alkynes at room temperature

2007 ◽  
Vol 21 (5) ◽  
pp. 345-349 ◽  
Author(s):  
Bing Chun Zhu ◽  
Xuan Zhen Jiang
Keyword(s):  
Room Temperature ◽  
Terminal Alkynes ◽  
Homocoupling Reaction

Mesoporous silica-supported copper-catalysts for homocoupling reaction of terminal alkynes at room-temperature

2013 ◽  
Vol 37 (5) ◽  
pp. 1343 ◽  
Author(s):  
Hongling Li ◽  
Min Yang ◽  
Xia Zhang ◽  
Liang Yan ◽  
Jing Li ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Room Temperature ◽  
Copper Catalysts ◽  
Terminal Alkynes ◽  
Homocoupling Reaction ◽  
Supported Copper Catalysts

ChemInform Abstract: A Mild CuCl-Catalyzed Glaser-Type Homocoupling Reaction: Air Oxidation and Room Temperature.

ChemInform ◽  
2015 ◽  
Vol 46 (33) ◽  
pp. no-no
Author(s):  
Xi Chen ◽  
Hailong Zhang ◽  
Jinping Chen ◽  
Hang Gong
Keyword(s):  
Room Temperature ◽  
Air Oxidation ◽  
Homocoupling Reaction

Room-Temperature Hydrohydrazination of Terminal Alkynes Catalyzed by Saturated Abnormal N-Heterocyclic Carbene-Gold(I) Complexes

2014 ◽  
Vol 20 (23) ◽  
pp. 6844-6848 ◽  
Author(s):  
Rubén Manzano ◽  
Thomas Wurm ◽  
Frank Rominger ◽  
A. Stephen K. Hashmi
Keyword(s):  
Room Temperature ◽  
Terminal Alkynes

Visible light-promoted copper catalyzed regioselective acetamidation of terminal alkynes by arylamines

2020 ◽  
Vol 22 (4) ◽  
pp. 1164-1170 ◽  
Author(s):  
V. Kishore Kumar Pampana ◽  
Arunachalam Sagadevan ◽  
Ayyakkannu Ragupathi ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Terminal Alkynes

Herein, we describe a copper photoredox catalyzed synthesis of acetamide via regioselective C–N coupling of arylamines with terminal alkynes using molecular oxygen (O2) as an oxidant at room temperature under visible light irradiation (47 examples).

Exploring the Influence of Phosphine Ligation on the Gold-Catalyzed Hydrohydrazination of Terminal Alkynes at Room Temperature

2017 ◽  
Vol 36 (13) ◽  
pp. 2470-2475 ◽  
Author(s):  
Nicolas L. Rotta-Loria ◽  
Alicia J. Chisholm ◽  
Preston M. MacQueen ◽  
Robert McDonald ◽  
Michael J. Ferguson ◽  
...  
Keyword(s):  
Room Temperature ◽  
Terminal Alkynes

Nickel-Catalyzed Direct Alkylation of Terminal Alkynes at Room Temperature: A Hemilabile Pincer Ligand Enhances Catalytic Activity

ACS Catalysis ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1164-1171 ◽  
Author(s):  
Pablo M. Pérez García ◽  
Peng Ren ◽  
Rosario Scopelliti ◽  
Xile Hu
Keyword(s):  
Catalytic Activity ◽  
Room Temperature ◽  
Terminal Alkynes ◽  
Pincer Ligand

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 ◽  
...  
Keyword(s):  
Room Temperature ◽  
Cross Coupling ◽  
Terminal Alkynes

Novel Diastereoselective Synthesis of 1-Trimethylgermyl-1-alkenes by Hydrolysis of α-Trimethylgermylzirconacyclopentenes

2020 ◽  
Vol 5 (2) ◽  
pp. 161-163
Author(s):  
Narayan G. Bhat ◽  
Maria Villarreal
Keyword(s):  
Low Temperature ◽  
Spectral Data ◽  
Room Temperature ◽  
Nitrogen Atmosphere ◽  
Terminal Alkynes ◽  
Diastereoselective Synthesis ◽  
Butyl Lithium ◽  
Hydrolysis Of

1-Trimethyl-1-germylalkynes were synthesized by deprotonation of terminal alkynes with n-butyl lithium at low temperature followed by treatment with trimethylgermyl chloride under nitrogen atmosphere. The reagent system Cp2ZrCl2/2EtMgBr converts 1-trimethylgermyl-1-alkynes into α- trimethylgermylzirconacyclopentenes at -78 ºC for 1 h followed by stirring at room temperature overnight. These novel intermediates are hydrolyzed at 0 ºC for an hour to provide the corresponding (Z)-1-trimethylgermyl-1-alkenes in good yields (74-85%) and in high stereochemical purities (> 98%) as evidenced by 13C spectral data.

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