An efficient approach to homocoupling of terminal alkynes: Solvent-free synthesis of 1,3-diynes using catalyticCu(ii) and base

2010 ◽  
Vol 12 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Dong Wang ◽  
Jihui Li ◽  
Na Li ◽  
Tingting Gao ◽  
Sihua Hou ◽  
...  
Keyword(s):  
Solvent Free ◽  
Terminal Alkynes ◽  
Efficient Approach ◽  
Solvent Free Synthesis

ChemInform Abstract: Fast, Ligand- and Solvent-Free Synthesis of 1,4-Substituted Buta-1,3-diynes by Cu-Catalyzed Homocoupling of Terminal Alkynes in a Ball Mill.

ChemInform ◽  
2011 ◽  
Vol 42 (47) ◽  
pp. no-no
Author(s):  
Robert Schmidt ◽  
Rico Thorwirth ◽  
Tony Szuppa ◽  
Achim Stolle ◽  
Bernd Ondruschka ◽  
...  
Keyword(s):  
Ball Mill ◽  
Solvent Free ◽  
Terminal Alkynes ◽  
Solvent Free Synthesis

Fast, Ligand- and Solvent-Free Synthesis of 1,4-Substituted Buta-1,3-diynes by Cu-Catalyzed Homocoupling of Terminal Alkynes in a Ball Mill

2011 ◽  
Vol 17 (29) ◽  
pp. 8129-8138 ◽  
Author(s):  
Robert Schmidt ◽  
Rico Thorwirth ◽  
Tony Szuppa ◽  
Achim Stolle ◽  
Bernd Ondruschka ◽  
...  
Keyword(s):  
Ball Mill ◽  
Solvent Free ◽  
Terminal Alkynes ◽  
Solvent Free Synthesis

Copper-, ligand- and solvent-free synthesis of ynones by coupling acid chlorides with terminal alkynes

2006 ◽  
Vol 47 (31) ◽  
pp. 5527-5530 ◽  
Author(s):  
Sanjay S. Palimkar ◽  
P. Harish Kumar ◽  
Nivrutti R. Jogdand ◽  
Thomas Daniel ◽  
Rajgopal J. Lahoti ◽  
...  
Keyword(s):  
Solvent Free ◽  
Terminal Alkynes ◽  
Acid Chlorides ◽  
Solvent Free Synthesis

Copper-, Ligand- and Solvent-Free Synthesis of Ynones by Coupling Acid Chlorides with Terminal Alkynes.

ChemInform ◽  
2006 ◽  
Vol 37 (44) ◽  
Author(s):  
Sanjay S. Palimkar ◽  
P. Harish Kumar ◽  
Nivrutti R. Jogdand ◽  
Thomas Daniel ◽  
Rajgopal J. Lahoti ◽  
...  
Keyword(s):  
Solvent Free ◽  
Terminal Alkynes ◽  
Acid Chlorides ◽  
Solvent Free Synthesis

Green H2O-Promoted Solvent-Free Synthesis of Enaminocarbonyl Compounds with High Stereoselectivity from Electron-Deficient Terminal Alkynes

Synlett ◽  
2020 ◽  
Vol 31 (09) ◽  
pp. 878-882
Author(s):  
Xiao Yun Chen ◽  
Luming Zhang ◽  
Yaonan Tang ◽  
Shuxia Yuan ◽  
Baocheng Zhu ◽  
...  
Keyword(s):  
Michael Addition ◽  
Aromatic Amines ◽  
Solvent Free ◽  
Secondary Amines ◽  
Terminal Alkynes ◽  
Primary Aromatic Amines ◽  
Solvent Free Synthesis ◽  
High Stereoselectivity

A green H2O-promoted solvent-free hydroamination of electron-deficient terminal alkynes with amines has been developed. All secondary amines, including aliphatic and aromatic amines, gave the corresponding (E)-enamines in good to excellent yields, whereas primary aromatic amines afforded Z-configured products in moderate yields. Propiolates, propyn-1-ones, propynamides, and 1-(ethynylsulfonyl)-4-methylbenzene were explored in this Michael addition.

scholarly journals An efficient approach to the cyclotrimerisation of alkynes: solvent-free synthesis of 1,3,5-trisubstituted benzenes using p-toluenesulfonic acid monohydrate

ARKIVOC ◽  
2013 ◽  
Vol 2013 (3) ◽  
pp. 49-60 ◽  
Author(s):  
Qi Gao ◽  
Fang-ping Bao ◽  
Xiao-jing Feng ◽  
Yingi-ming Pan ◽  
Heng-shan Wang ◽  
...  
Keyword(s):  
Solvent Free ◽  
Efficient Approach ◽  
Toluenesulfonic Acid ◽  
Solvent Free Synthesis

scholarly journals Chitosan-silica Sulfate Nano Hybrid: An Efficient Biopolymer Based-heterogeneous Nano Catalyst for Solvent-free Synthesis of 3,4-Dihydropyrimidine-2(1H)-one/thiones

2021 ◽  
Vol 68 (2) ◽  
pp. 374-386
Author(s):  
Somayeh Behrouz ◽  
Masoome Nazar Abi ◽  
Mohammad Amin Piltan
Keyword(s):  
Biginelli Reaction ◽  
Reaction Times ◽  
Significant Loss ◽  
Solvent Free ◽  
Methyl Acetoacetate ◽  
Free Condition ◽  
Efficient Approach ◽  
Solvent Free Condition ◽  
Nano Catalyst ◽  
Solvent Free Synthesis

A green and highly efficient approach for the synthesis of 3,4-dihydropyrimidine-2(1H)-one/thione derivatives is described. In this approach, the three-component Biginelli reaction between (thio)urea, methyl acetoacetate and aldehydes under solvent-free condition in the presence of chitosan-silica sulfate nano hybrid (CSSNH) as a green and heterogeneous nano catalyst affords the corresponding products in good to excellent yields and in short reaction times. CSSNH is a cheap, eco-friendly, and non-toxic nano catalyst that could be easily prepared, handled, and reused for many reaction runs without significant loss of its activity.

Sign in / Sign up

Export Citation Format

Share Document