Efficient syntheses and enantioselective gas chromatography have confirmed the structures and established the absolute stereochemistry of some novel bicyclic lactones (tetrahydrofurofuranones) in species of parasitic wasps (Hymenoptera:Braconidae). The co-occurring γ-lactones, octan-4-olide and dodecan-4-olide, have the (R)-configuration.
有效的合成和对映选择性气相色谱法已经证实了结构,并建立了寄生蜂(膜翅目::科)中某些新型双环内酯(
四氢呋喃呋喃酮)的绝对立体
化学。共生的γ-内酯,
辛酸-4-内酯和
十二烷-4-内酯具有(R)-构型。