Arylmethylidenefuranones: Reactions with C- and N-Nucleophiles

In the review, data on the reactions of arylmethylidene derivatives of 3 H -furan-2-ones with C -, N -, N , N -, and N , O -nucleophilic agents and amines of the heterocyclic series are systematized. It is demonstrated that the direction of the reaction depends on the structure of initial reagents, the strength of nucleophilic agent, and the reaction conditions. A wide range of acyclic, cyclic, and heterocyclic compounds are obtained: amides, 4-oxoalkanoic hydrazides, pyrrolones, benzofurans, furopyridines, phenanthrenes, pyrosolinones, pyridazinones, oxazines, thiadiazoles, triazolediazepinones, etc.