Use of 7-isopropyl - -8, 8-dimethyl-6, 10-dioxaspiro-C.sub.10 and C.sub. 11 alkane derivatives for their organoleptic properties and synthesis process for preparing such derivaties

摘要

Described is the use of 7-isopropyl-8,8-dimethyl-6,10- dioxaspiro-C.sub. 10 and C.sub.11 alkane derivatives defined according to the structure: ##STR1## wherein N is 1 or 2 for their organoleptic properties, particularly for use in imparting, augmenting or enhancing the aroma of a perfume composition, perfumed polymer, detergent, fabric softener, or bleach composition. Also described is a process for preparing such 7- isopropyl-8,8-dimethyl-6,10-dioxaspiro-C.sub.10 and C. sub.11 alkane derivatives using as starting materials cycloalkanones defined according to the structure: ##STR2## and the diol having the structure: ##STR3##