Synthetics
(e)-2-hexenal has a green, slightly floral and fruity aroma.
Mosciano, Gerard P&F 25, No. 6, 26, (2000): Sharp, penetrating fresh leafy green, clean, fruity with herbal and spicy herbal nuances
Luebke, William tgsc, (2007): Green banana aldehydic fatty cheesy
FCI SAS: Powerful green vegetable-like