Many naturally occurring substances contain several carbon-carbon double bonds: some isolated, some conjugated, and some cumulated. Identify the types of carbon-carbon double bonds found in each of the following substances:
(a) Humulene (found in hops and oil of cloves)

(b) Cembrene (occurs in pine resin)

(c) The sex attractant of the male dried-bean beetle

Transcribed Image Text:

CH3 CH3 Нас H3C CH3 СНЗ СНЗ СНЗ CH3(CH2)6CH2CH-C CH CO2CH3