Journal ArticleDOI
A straightforward highly efficient Paal–Knorr synthesis of pyrroles
TLDR
In this article, a simple synthesis of substituted pyrroles using bismuth nitrate-catalyzed modified Paal-Knorr method has been accomplished with an excellent yield.About:
This article is published in Tetrahedron Letters.The article was published on 2005-04-11. It has received 118 citations till now. The article focuses on the topics: Paal–Knorr synthesis & Knorr pyrrole synthesis.read more
Citations
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Journal ArticleDOI
Synthesis and biological activity of pyrrole, pyrroline and pyrrolidine derivatives with two aryl groups on adjacent positions
Fabio Bellina,Renzo Rossi +1 more
TL;DR: The methods used for the synthesis of vicinal diaryl-substituted pyrrole, pyrroline and pyrrolidine derivatives are reviewed in this article, which contains 461 references and summarizes bioactivity data of some of these compounds.
Journal ArticleDOI
Applications of bismuth(III) compounds in organic synthesis
TL;DR: This review article summarizes the applications of bismuth(III) compounds in organic synthesis since 2002 and is largely organized by the reaction type although some reactions can be placed in multiple sections.
Journal ArticleDOI
An approach to the Paal–Knorr pyrroles synthesis catalyzed by Sc(OTf)3 under solvent-free conditions
TL;DR: In this article, a facile synthesis of N-substituted pyrroles by Paal-Knorr condensation has been achieved using a simple procedure.
Journal ArticleDOI
Bismuth nitrate-catalyzed multicomponent reaction for efficient and one-pot synthesis of densely functionalized piperidine scaffolds at room temperature
Goutam Brahmachari,Suvankar Das +1 more
TL;DR: In this paper, a simple, straightforward, and highly efficient diastereoselective multicomponent one-pot synthesis of a series of pharmaceutically interesting functionalized piperidine derivatives has been developed based on a low-cost and environmentally benign Bi(NO3)3·5H2O catalyst via tandem reactions of 1,3-dicarbonyl compounds, aromatic aldehydes, and various amines in ethanol at room temperature.
References
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Journal ArticleDOI
Bismuth Nitrate-Catalyzed Versatile Michael Reactions†
Neeta Srivastava,Bimal K. Banik +1 more
TL;DR: Bismuth nitrate-catalyzed versatile Michael reaction was developed to reduce the complications that characterize the current standard Michael reaction and used for facile preparation of organic compounds of widely different structures.
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A New, Titanium-Mediated Approach to Pyrroles: First Synthesis of Lukianol A and Lamellarin 0 Dimethyl Ether
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Surface-mediated highly efficient regioselective nitration of aromatic compounds by bismuth nitrate
TL;DR: Montmorillonite impregnated with bismuth nitrate was found to be an excellent reagent for aromatic nitration in high yield as discussed by the authors, and it was used in the synthesis of aromatic nitrate.
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Microwave assisted synthesis of pyrroles
TL;DR: The synthesis of pyrroles by reaction of hexane-2,5-dione with primary amines has been shown to occur in less than 2 minutes under microwave activation.
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1-Aza-1,3-bis(triphenylphosphoranylidene)propane: A Novel :CHCH2N: Synthon
TL;DR: In this paper, the reaction of 1-[[(tri-phenylphosphoranylidene)amino]methyl]ben- zotriazole (betmip, 4) with methylidenetriphenyl phosphorane followed by treatment with butyllithium, enables convenient preparations of 3H- 2-benzazepine (7), 2,3-diarylpyrroles (8), and primary allylamines (12) and (13)