| abstract |
There are provided novel gamma, delta-unsaturated aldehydes of the general formula: WHEREIN R1 is alkyl of 1-9 carbon atoms or alkenyl of 2-9 carbon atoms, R2 and R3 are hydrogen or alkyl of 1-6 carbon atoms, R4 is hydrogen, alkyl of 1-6 carbon atoms or alkenyl of 2-6 carbon atoms, and R5 and R6 are hydrogen or methyl. These novel compounds possess a floral or fruity aroma. There are also provided novel processes for preparing said compounds. |