scholarly journals Facile synthesis of functionalized tetrahydroquinolines via domino Povarov reactions of arylamines, methyl propiolate and aromatic aldehydes

2012 ◽  
Vol 8 ◽  
pp. 1839-1843 ◽  
Author(s):  
Jing Sun ◽  
Hong Gao ◽  
Qun Wu ◽  
Chao-Guo Yan
Keyword(s):  
Aromatic Aldehydes ◽  
Domino Reaction ◽  
Facile Synthesis ◽  
Methyl Propiolate ◽  
Toluenesulfonic Acid ◽  
Povarov Reaction

In the presence of p-toluenesulfonic acid as catalyst the domino reaction of arylamines, methyl propiolates and aromatic aldehydes in ethanol proceeded smoothly to give polysubstituted 1,2,3,4-tetrahydroquinolines in moderate yields. The reaction is believed to involve the Povarov reaction of in situ generated β-enamino ester with the in situ formed aromatic imine.

Magnesium salt promoted tandem nucleophilic addition–Oppenauer oxidation of aldehydes with organozinc reagents

2016 ◽  
Vol 14 (41) ◽  
pp. 9720-9724 ◽  
Author(s):  
Ying Fu ◽  
Xing Ling Zhao ◽  
Hulmet Hügel ◽  
Danfeng Huang ◽  
Zhengyin Du ◽  
...  
Keyword(s):  
Nucleophilic Addition ◽  
Aromatic Aldehydes ◽  
Magnesium Salt ◽  
Facile Synthesis ◽  
Aromatic Ketones ◽  
Oppenauer Oxidation ◽  
Organozinc Reagents

A facile synthesis of aromatic ketones via tandem nucleophilic addition–Oppenauer oxidation of aromatic aldehydes with organozinc reagents was demonstrated. Magnesium salt in situ generated via organozinc formation is a powerful promotor for this transformation.

Acetic acid mediated regioselective synthesis of 2,4,5-trisubstituted thiazoles by a domino multicomponent reaction

2019 ◽  
Vol 43 (22) ◽  
pp. 8644-8650 ◽  
Author(s):  
Mohit Saroha ◽  
Jitender M. Khurana
Keyword(s):  
Acetic Acid ◽  
Multicomponent Reaction ◽  
Regioselective Synthesis ◽  
Domino Reaction ◽  
Thiazole Derivatives ◽  
Active Methylene

Acetic acid mediated regioselective synthesis of novel 2,4,5-trisubstituted thiazole derivatives has been reported by a domino reaction of thiosemicarbazide and aldehydes/ketones/isatin, to generate thiosemicarbazones (in situ) followed by addition of arylglyoxal and active methylene/activated C–H acids/pyrazole/indole in ethanol at 80 °C.

Facile synthesis of indene and fluorene derivatives through AlCl3 -catalyzed cyclization of in situ formed iminium ions

2017 ◽  
Vol 31 (12) ◽  
pp. e3863 ◽  
Author(s):  
Lei Chen ◽  
Wei Teng ◽  
Xin-Le Geng ◽  
Yi-Fan Zhu ◽  
Yong-Hong Guan ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Iminium Ions

In situ and facile synthesis of silver nanoparticles on baby wipes and their applications in catalysis and SERS

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 5016-5023 ◽  
Author(s):  
Bharat Baruah
Keyword(s):  
Silver Nanoparticles ◽  
Composite Materials ◽  
Heterogeneous Catalyst ◽  
Facile Synthesis ◽  
Sers Substrates ◽  
Efficient Heterogeneous Catalyst

Silver nanoparticles were immobilized on fibers to create composite materials. The composites are shown to be efficient heterogeneous catalyst with very good recyclability. These composite materials are also proven to be good SERS substrates.

Facile Synthesis of Multifullerene-OPE Hybrids via in Situ Ethynylation

2004 ◽  
Vol 6 (13) ◽  
pp. 2129-2132 ◽  
Author(s):  
Yasuhiro Shirai ◽  
Yuming Zhao ◽  
Long Cheng ◽  
James M. Tour
Keyword(s):  
Facile Synthesis
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