TERPENOIDS AND STEROIDS 



119 



TABLE 1 . SOME HEMITERPENOIDS 

 Compound Source 



CH3 





CHCH2CH2OH 



CH3 



iso-Amyl Alcohol 



as an ester in essential oils of 

 Mentha. Eucalyptus, Ribes. etc. 



CH3 O 



CH3 H 



ISO- Valeraldehyde 



in essential oil of Eucalyptus, 

 Eugenia, Santahuii, etc. 



CH, 





O 

 II 

 CHCH2COH 



CH3 



iso -Valeric Acid 



widespread, e.g. in Valeriana 

 spp. 



CH, 



O 



II 

 C=CHCOH 





Senecioic Acid 



Senecio kaeuipferi and elsewhere 



H ,COOH 



CH3 CH3 



Tiglic Acid 



widespread, e. g. 

 Geranium spp. 



CH, /COOH 



H CH3 



Angelic Acid 



widespread, e. g. 

 Archangelica officinalis 



CH 



C— COOH 



CH CH 



Phaseolus multiformis 



jS-Furoic Acid 



