Esters COCH2CH2CH propyl be nzoate (Z cyclope ntyl 2-bute noate 0 COCH-CH(CH3) CH-COCHCH3 isobutyl cyclohe xane carboxylate e thyl phe nylace tate Esters COCH2 CH2 CH3 O O O propyl benzoate (Z) cyclopentyl 2-butenoate COCH2 CH(CH3 ) 2 O isobutyl cyclohexanecarboxylate CH2 COCH2 CH3 O ethyl phenylacetate