Journal ArticleDOI
A new protocol to synthesize 1,4-dihydropyridines by using 3,4,5-trifluorobenzeneboronic acid as a catalyst in ionic liquid: synthesis of novel 4-(3-carboxyl-1H-pyrazol-4-yl)-1,4-dihydropyridines
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TLDR
In this article, a facile synthesis of 4-pyrazolyl 1,4-dihydropyridines at room temperature by cyclocondensation of ethyl 3-aminocrotonate, pyrazole aldehyde and a β-keto ester is reported.About:
This article is published in Tetrahedron.The article was published on 2005-02-28. It has received 164 citations till now. The article focuses on the topics: Ionic liquid & Pyrazole.read more
Citations
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Ionic liquids in heterocyclic synthesis.
TL;DR: Ionic Liquids Presented in This Review 2020 3.1.
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Solvent-free heterocyclic synthesis.
TL;DR: 1. Six-Membered Heterocycles with One Heteroatom 4155 7.6.1.
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Molecular iodine-catalyzed one-pot synthesis of 4-substituted-1,4- dihydropyridine derivatives via Hantzsch reaction
TL;DR: In this paper, a simple, inexpensive and efficient one-pot synthesis of 1,4-dihydropyridine derivatives at room temperature using catalytic amount of iodine was reported with excellent product yields.
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Recent advances in new multicomponent synthesis of structurally diversified 1,4-dihydropyridines
Jie-Ping Wan,Yunyun Liu +1 more
TL;DR: In this article, the advances on the synthesis of structurally diversified 1,4-Dihydropyridines through new multicomponent reactions beyond the classical Hantzsch reaction are reviewed.
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Ceric Ammonium Nitrate (CAN) catalyzes the one-pot synthesis of polyhydroquinoline via the Hantzsch reaction
Shengkai Ko,Ching Fa Yao +1 more
TL;DR: In this article, a facile and efficient one-pot synthesis of polyhydroquinoline derivatives at ambient temperature using Ceric Ammonium Nitrate (CAN) as catalyst via the Hantzsch reaction was reported.
References
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Ueber die Synthese pyridinartiger Verbindungen aus Acetessigäther und Aldehydammoniak
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Friedel-Crafts reactions in ambient-temperature molten salts
TL;DR: Alkylation et acylation du benzene en utilisant des melanges de chlorure de methyl-1 ethyl-3 imidazolium avec AlCl 3 a la fois comme solvants and comme catalyseurs as discussed by the authors.