Synthesis of γ-Amino Esters by Copper-Catalyzed Intermolecular 1,2-Aminoalkylation of Alkenes with Amines and α-Bromoalkyl Esters

Synthesis ◽  
2018 ◽  
Vol 50 (08) ◽  
pp. 1651-1660 ◽  
Author(s):  
Ren-Jie Song ◽  
Jin-Heng Li ◽  
Gao-Hui Pan ◽  
Ye-Xiang Xie ◽  
Shenglian Luo

A new copper-catalyzed intermolecular 1,2-aminoalkylation of alkenes with α-bromoalkyl esters and amines for the synthesis of γ-amino esters is described. Employing the Cu(OTf)2 and 2,2′-bipyridine catalytic system, the three-component reaction allows the formation of two new chemical bonds, including one C–C bond and one C–N bond, in a single reaction, and represents a new alkene difunctionalization using a radical strategy.

Synthesis ◽  
2018 ◽  
Vol 50 (11) ◽  
pp. 2191-2199 ◽  
Author(s):  
Yongde Zhao ◽  
Shengqiang Guo ◽  
Yang Zhou ◽  
Bencai Dai ◽  
Cuimeng Huo ◽  
...  

A concise one-pot three-component reaction of organic halides­, terminal acetylenes, and sodium azide provided an efficient route for the synthesis of 1,2,3-triazoles. A variety of 1,2,3-triazoles were prepared in good to excellent yields with green solvent glycerol. This procedure used CuI and diethylamine, which are two easily available reagents as the new catalytic system at room temperature.


ChemInform ◽  
2014 ◽  
Vol 45 (39) ◽  
pp. no-no
Author(s):  
Helio A. Stefani ◽  
Flavia Manarin ◽  
Ariane C. S. Sousa ◽  
Frederico B. Souza ◽  
Witor Ribeiro Ferraz

2016 ◽  
Vol 40 (8) ◽  
pp. 6819-6824 ◽  
Author(s):  
Hozeyfa Sagir ◽  
Rahila Rahila ◽  
Pragati Rai ◽  
Prashant Kumar Singh ◽  
I. R. Siddiqui

ZnO nanoparticles and β-cyclodextrin was used as a green catalytic system for the synthesis of benzo[1,4]thiazin-2-amine via a one-pot, three-component reaction of an o-amino thiophenol, aldehydes and isocyanides in excellent yields at 60 °C in water.


RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 28921-28924 ◽  
Author(s):  
Tran Thi Thu Trang ◽  
Denis S. Ermolat'ev ◽  
Erik V. Van der Eycken

A highly efficient microwave-assisted three-component reaction between an aldehyde, a primary amine and an alkyne was developed using an inexpensive Cu(i)/Cu(ii) catalytic system and water as solvent.


2019 ◽  
Vol 6 (1) ◽  
pp. 44-51
Author(s):  
Vivek Srivastava

Background: We are submitting an easy, effective and environmentally benign protocol for the synthesis of 18 different 1,2-dihydroquinazoline derivatives. Methods: We implemented [TMA][OH] ionic liquid mediated hydrotalcite clay catalytic system as a green catalyst to perform this reaction. Results: Three-component reaction pathway was utilized to synthesize 1,2-dihydroquinazoline derivatives using aromatic aldehydes, 2-amino benzophenones, and ammonium acetate with green and recyclable ionic liquid mediated hydrotalcite clay catalytic system. Conclusion: The notable highlights of this method comprise short reaction time, operational simplicity, high yields, and high selectivity. Additionally, the catalyst can be recovered and recycled for up to eight cycles without any loss in catalytic activity.


Tetrahedron ◽  
2014 ◽  
Vol 70 (20) ◽  
pp. 3243-3248 ◽  
Author(s):  
Hélio A. Stefani ◽  
Flávia Manarin ◽  
Ariane C.S. Sousa ◽  
Frederico B. Souza ◽  
Witor Ribeiro Ferraz

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