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ChemInform Abstract: Expedient Syntheses of β-Iodofurans by 5-endo-dig Cyclizations.

✍ Scribed by Sean P. Bew; Gamila M. M. El-Taeb; Simon Jones; David W. Knight; Wen-Fei Tan


Publisher
John Wiley and Sons
Year
2008
Weight
41 KB
Volume
39
Category
Article
ISSN
0931-7597

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✦ Synopsis


Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.


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Expedient Syntheses of β-Iodofurans by 5
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## Abstract 5‐__endo__‐__dig__ cyclisations of 3‐alkyne‐1,2‐diols using iodine as the electrophile proceed smoothly to deliver excellent yields of the corresponding β‐iodofurans. The necessary precursors are available from a number of different approaches, notably regioselective bis‐hydroxylation o

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5-endo-dig Cyclizations of Homopropargylic Sulfonamides: A New Route to 2,3-Dihydropyrroles and β-Iodopyrroles. -The synthesis of dihydropyrroles (VIII) by 5-endo-dig iodocyclization of readily obtainable sulfonamides (VII) and their conversion into β-iodopyrroles (IX) via base-catalyzed eliminatio