Dimethylfuran lactone

Males from Galerucella calmariensis and Galerucellapusilla (Coleoptera Chrysomelidae) emit an aggregation pheromone while feeding on host foliage. The compound was identified by spectrometric and other microchemical tests as the novel dimethylfuran lactone, 12,13-dimethyl-5,l4-dioxabicyclo[9.2.1]-tetradeca-l(13),ll-dien-4-one. The structure was confirmed by synthesis and the synthetic compound attracted both males and females in field tests. 

Another unusual structure is represented by the male-produced pheromone of the chrysomelid beetles, Galerucella calmariensis and Galerucella pusilla. The compound, 12,13-dimethyl-5,14-dioxabicyclo[9.2.1]tetra-deca-l(13),ll-dien-4-one, (09) is a lactone including a 3,4-dimethylfuran substructure.943 Similar... 

G.8) 2(5//)-Furanone, 3,4-dimethyl-, 2,3-dimethyIbut-2-eno-4-lactone, 2,5-dihydro-3,4-dimethylfuran-2-one, 2,3-dimethyl-2-buten-4-olide, 2,3-dimethyl-4-hydroxy-2-butenoic acid, 7-lactone 11575-46-81... 

G.12) (G.12) 2(5/f)-Furanone, 3-hydroxy-4,5-dimethyl-, 2-hydroxy-3-methylpent-2-eno-4- lactone, 2,5-d hydro-3-hydroxy-4,5-dimethylfuran-2-one, 2-hydroxy-3,4-dimethyl-2-buten-4-olide, sotolon(e) (28664-35-9] FEMA 3634... 

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