Synthesis of 3-aryl-4-chalcogen-2H-benzopyrans from 3-iodo-4-chalcogen-2H-benzopyrans using a Suzuki cross-coupling
Benhur Godoi,José S. S. Neto,Adriane Sperança,Carmine Inês Acker,Cristina W. Nogueira,Gilson Zeni +5 more
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TLDR
The Suzuki cross-coupling reaction of 3-iodo-4-chalcogen-2 H -benzopyran derivatives with a variety of organoboron compounds in the presence of catalytic amount of palladium salt is described in this paper.About:
This article is published in Tetrahedron Letters.The article was published on 2009-09-23 and is currently open access. It has received 5 citations till now. The article focuses on the topics: Benzopyrans & Aryl.read more
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Journal ArticleDOI
FeCl3-Diorganyl Dichalcogenides Promoted Cyclization of 2-Alkynylanisoles to 3-Chalcogen Benzo[b]furans
TL;DR: A general synthesis of 3-chalcogen benzo[b]furans from the readily available 2-alkynylanisoles, via FeCl(3)/diorganyl dichalcogenides intramolecular cyclization, has been developed and it is revealed that the reaction significantly depends on the electronic effects of substituents in the aromatic ring bonded to the selenium atom of the diselenide species.
Journal ArticleDOI
Copper(II)-Mediated Intramolecular Cyclization of (Z)-Chalcogenoenynes: Synthesis of 3-Halochalcogenophene Derivatives
TL;DR: In this article, the cyclization of (Z)-chalcogenoenynes mediated by copper(II) salts to afford 3-halochalcogenes in satisfactory yields through an intramolecular 5-endo-dig cyclization was carried out using CuCl2 at 50 °C or CuBr2 at room temperature under an ambient atmosphere.
Journal ArticleDOI
Iron(III) Chloride/Diorganyl Diselenides-Promoted Regioselective Cyclization of Alkynyl Aryl Ketones: Synthesis of 3-Organoselenyl Chromenones under Ambient Atmosphere
Benhur Godoi,Adriane Sperança,César Augusto Brüning,Davi F. Back,Paulo H. Menezes,Cristina W. Nogueira,Gilson Zeni +6 more
TL;DR: In this article, an efficient and environmentally benign synthesis of 3-organoselenyl chromenones was accomplished via iron(III) chloride/diorganyl diselenides-promoted intramolecular 6-endo-dig cyclization of alkynyl aryl ketone derivatives.
Reference EntryDOI
Cross‐Coupling Reactions of Organotrifluoroborate Salts
TL;DR: This chapter provides a comprehensive overview of all cross-coupling reactions of the various classes of organotrifluoroborates that have been carried out through August, 2009.
References
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Journal ArticleDOI
Palladium-catalyzed cross-coupling reactions of organoboron compounds
Norio Miyaura,Akira Suzuki +1 more
TL;DR: In this paper, a cross-coupling reaction is proposed for coupling 1 -Alkenylboron Derivatives: Synthesis of Conjugated Dienes 6.
BookDOI
Metal-catalyzed cross-coupling reactions
TL;DR: In this paper, the authors present an approach to the formation of C-X (X = N, O, S) bonds in metal-catalyzed cross-coupling reactions.
BookDOI
Handbook of organopalladium chemistry for organic synthesis
TL;DR: Palladium-CATALYZED Reactions Involving Nucleophilic Attack on -Ligands of Palladium-Alkene, PalladiumAlkyne, and Related Derivatives as mentioned in this paper.
Journal ArticleDOI
Synthesis and functionalization of indoles through palladium-catalyzed reactions
Sandro Cacchi,Giancarlo Fabrizi +1 more
TL;DR: P palladium-catalyzed synthesis can provide access to fine chemicals, agrochemical and pharmaceutical intermediates, and active ingredients in fewer steps and with less waste than classical.
Journal ArticleDOI
Organotrifluoroborates: protected boronic acids that expand the versatility of the Suzuki coupling reaction.
Gary A. Molander,Noel M. Ellis +1 more
TL;DR: The trifluoroborate moiety is stable toward numerous reagents that are often problematic for other boron species, Consequently, remote functional groups within the organotrifLUoroborates can be manipulated, while retaining the valuable carbon-boron bond.
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