Dihydrofuran

4-(p-chlorophenyl)dihydrofuran-2(3H)-one

4-[(S)-1-Methylpropyl]-2,3-dihydrofuran

4-(3,4-dimethoxybenzylidene)dihydrofuran-2(3H)-one

ethyl 5-(acetyloxy)-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-carboxylate

2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-yl ethyl carbonate