Cyclics Most organic compounds contain rings of carbon atoms Chrysanthemic acid H3C CH3 Occurs naturally as esters -Active insecticidal Chrysanthemic acid -H constituents of chrysanthemum CO>H flowers Prostaglandins CO2H Potent hormones Prostaglandin E1 CH3 Control physiological functions HO in humans HO CH2OH Steroids CH3 0 Contain four joined rings OH Naturally occurring hormones CH3 Cortisone in plants and animals HMost organic compounds contain rings of carbon atoms Cyclics Chrysanthemic acid ▪ Occurs naturally as esters ▪ Active insecticidal constituents of chrysanthemum flowers Prostaglandins ▪ Potent hormones ▪ Control physiological functions in humans Steroids ▪ Contain four joined rings ▪ Naturally occurring hormones in plants and animals