Journal ArticleDOI
Mercury(II) trifluoroacetate-mediated cyclisation of aryl allenic ethers
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TLDR
Mercury(II) trifluoroacetate brings about a facile cyclisation of aryl allenic(aryl 2,3-butadien-1yl) ethers to 4-methyl-2H-1-benzopyrans.About:
This article is published in Tetrahedron Letters.The article was published on 1991-11-04. It has received 17 citations till now. The article focuses on the topics: Aryl & Mercury (element).read more
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Journal ArticleDOI
Synthesis of 3,4-Disubstituted 2H-Benzopyrans Through C-C Bond Formation via Electrophilic Cyclization
TL;DR: The electrophilic cyclization of substituted propargylic aryl ethers by I2, ICl, and PhSeBr produces 3,4-disubstituted 2H-benzopyrans in excellent yields.
Journal ArticleDOI
Gold-catalyzed hydroarylation of allenes: a highly regioselective carbon-carbon bond formation producing six-membered rings.
TL;DR: Gold-catalyzed intramolecular hydroarylation of allenic anilines and phenols offers an efficient route to dihydroquinoline and chromene derivatives under mild reaction conditions, leading to a highly selective formation of six-membered rings.
Journal ArticleDOI
A simple approach to highly functionalized benzo[b]furans from phenols and aryl iodides via aryl propargyl ethers
V. S. Prasada Rao Lingam,Ramanatham Vinodkumar,Khagga Mukkanti,Abraham Thomas,Balasubramanian Gopalan +4 more
TL;DR: In this paper, a variety of mono-and disubstituted phenols are alkylated with propargyl bromide to give phenyl 2-propynyl ethers, which were further coupled with aryl iodides under Sonogashira reaction conditions to give 3-phenoxy-1-aryl-1propyne derivatives.
Journal ArticleDOI
Tandem transformations of N-alkyl-N-allenylmethylanilines to N-alkyl-2-ethenylindoles
TL;DR: In this article, N-alkyl-N-allenylmethylanilines with magnesium monoperoxyphthalate in methanol-water underwent tandem transformations to furnish Nalkyl 2-ethenylindoles in good yield.
Journal ArticleDOI
Synthesis of E- and Z-substituted methylene-3,4-dihydro-2H-1-benzopyrans by regio- and stereocontrolled palladium-catalyzed intramolecular cyclization
TL;DR: In this paper, a stereocontrolled synthetic approach to E and Z -substituted methylene-3,4-dihydro-2 H -1-benzopyrans is described from acyclic derivatives using as a key step the palladium-catalyzed intramolecular cyclic carbopalladation of iodoalkynes.
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