International Flavors & Fragrances Inc.

Irene Christine Burtyk

Richard M Boden

Vito Joseph Mancini

Iku Sasaki

Marie R Hanna

Charles E Beck

Jan T Van Elst

Non-aqueous based fragrance compositions containing a siloxane material are disclosed. The fragrance compositions are suitable for many applications including cosmetics, laundry care and personal care items. The fragrance compositions can also be used in air fresheners, particularly those air fresheners that contain heating elements.

Fragrance material

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##

Use of 7-isopropyl - -8, 8-dimethyl-6, 10-dioxaspiro-C.sub.10 and

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Westfield, NJ, United States of America

Irene Christine Burtyk