A Facile Synthesis of 2-Phenylimino-3(2H)-benzofuranones from the Silyl Enol Ether of 2-Hydroxyacetophenones and Nitrosobenzene

Article abstract of DOI:10.1055/s-1990-26988

The addition of nitrosobenzene to the silyl enol ether of 2-hydroxyacetophenones followed by desilylation, elimination, cyclization and oxidation afforded 2-phenylimino-3(2H)-benzofuranones without isolation of the intermediates.