An easy approach to dihydrofurans by one-step cyclisation of 2-alkenyl substituted 1,3-dicarbonyl compounds

Dihydrofuran derivatives were obtained by a simple one-step procedure involving an easy epoxidation of 2-alkenyl-1,3-dicarbonyl compounds by dimethyldioxirane prepared in situ and a subsequent cyclisation under the same basic reaction conditions.