ALKYNE-ACETAL CYCLISATION REACTIONS MEDIATED BY FORMIC ACID; 3-ACYLATED-2,5-DIHYDROFURANS AND RELATED OXYGEN AND NITROGEN HETEROCYCLES

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JournalHeterocycles
DatePublished - 1 Jan 2012
Issue number2
Volume84
Number of pages9
Pages (from-to)1013-1021
Original languageEnglish

Abstract

The utility of formic acid for the cyclisation of alkyne omega-acetals is described; the scope and limitations of this process are outlined and a range of acylated heterocyclic building blocks (2,5-dihydrofurans, 2,5-dihydro-1H-pyrroles, tetrahydropyridines, 2H-chromenes, 1,2-dihydroquinolines and benzoxepin5-(2H)-ones) are reported.

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