Methyl substituted propyl-substituted pentamethyl indane derivatives processes for producing same and perfumery uses thereof

摘要

Described are methyl, substituted propyl-substituted pentamethyl indane derivatives defined according to the structure: <IMAGE> wherein R1 represents chloro, hydroxyl or OR6; and R5 represents methyl or hydrogen with the proviso that when R1 is chloro, R5 is hydrogen, and wherein the structure represents a mixture wherein in the mixture in one of the compounds R4 and R4' are both methyl and R7 is methyl (about 90% by weight); and in the other compounds one of R4 or R4' is methyl and the other is ethyl (about 10% by weight of the compounds) and R7 is hydrogen; and uses thereof in augmenting, enhancing or imparting aromas in or to perfume compositions. Also described are processes for preparing such methyl, substituted propyl-substituted pentamethyl indane derivatives using as a starting material the mixture of compounds defined according to the structure: <IMAGE> also know as GALAXOLIDE TM (trademark of International Flavors & Fragrances Inc.).