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VOLATILE ALCOHOLS AND CARBONYL COMPOUNDS 



TABLE 2. SOME VOLA TILE ALCOHOLS AND CARBONYL 

 COMPOUNDS FOUND IN PLANTS 



Compound 



Occurrence 



CH3OH 

 methanol 



CH3CH2OH 

 ethanol 



CH3 

 CH3CHCH2OH 

 iso-butyl alcohol 



CH3CH2CH = CHCH2CH2OH 

 cis -3 -hexenol-1 



CH3(CH2)5CHCH3 



OH 

 2-octanol 



.0 



cHgc; 



,<^" 



H 



ethanal, acetaldehyde 

 ,0 



CH3(CH2)4C, 



H 



hexanal, caproaldehyde 

 .0 



CH3(CH2)ioC 



^^ 



H 



dodecanal, lauraldehyde 



O 

 CH3CCH3 

 acetone 



widespread, usually as esters 



widespread, free or as esters 



fruits, free or as esters 



free in many leaves and flowers 



geranium oil (Pelargonium spp. ) 



many fruits 



Eucalyptus spp. 



citrus fruits 



many essential oils 



O 



CH3C(CH2)5CH3 

 2-octanone 



rue (Ruta spp. ) 



00 



II II 



CH3C C CH3 



diacetyl, 2, 3-butandione 



raspberries [Rubus idaeus) 



