Direct Access to Fully Substituted 3-Formyl-4-iodofurans through Iodocyclization of α-Alkynyl β-Alkoxy Enones
作者:Guillaume Raffa、Geneviève Balme、Nuno Monteiro
DOI:10.1002/ejoc.201201203
日期:2013.1
A facile access to 3-formyl-4-iodofurans is presented. This protocol consists of a Sonogashira cross-coupling of an α-iodo β-alkoxy enone with a terminal alkyne and the subsequent iodonium-promoted heteroannulation–dealkoxylation of the resulting α-alkynyl β-alkoxy enone by treatment with N-iodosuccinimide in aqueous medium.