Described are 2,4,4-trisubstituted tetrahydro pyranyl esters defined according to the structure: ##STR1## wherein R.sub.1 represents methyl or ethyl and R.sub.2 represents C.sub.2 -C.sub.4 straight chain or branched chain alkyl or alkenyl and organoleptic used thereof in augmenting or enhancing the aroma...http://www.google.ca/patents/US4963285?utm_source=gb-gplus-sharePatent US4963285 - 2,4,4-irisubstituted tetrahydro pyranyl esters and organoleptic uses thereof
