1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes a

Details 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes a 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes a

1995-04-25

1996-08-13

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568319, 568322, 568648, C07C 4118

Patent

active

055457630

ABSTRACT:
Described are 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes and mixtures thereof with bicyclopentadiene derivatives, wherein the 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes are defined according to the structure: ##STR1## wherein Y.sub.1 represents one of the moieties: ##STR2## and wherein the bicyclopentadiene derivatives are defined according to the structure: ##STR3## wherein Z.sub.1 and Z.sub.2 represent hydrogen, C.sub.1 -C.sub.3 lower alkyl or C.sub.2 -C.sub.3 acyl and Z.sub.3 represents methyl or hydrogen with the proviso that Z.sub.1 and Z.sub.2 are not both hydrogen, and uses thereof in augmenting, enhancing or imparting aromas in and to perfume compositions, colognes, perfumed polymers and perfumed articles. Also described is a process for preparing one or both of the compounds having the structures: ##STR4## by means of first preparing the compound having the structure: ##STR5## by reacting the compound having the structure: ##STR6## with the compound having the structure: ##STR7## where X.sub.1 represents chloro, bromo or hydroxyl and then reacting the compound having the structure: ##STR8## with hydrogen in the presence of an appropriate catalyst under appropriate reaction conditions.

REFERENCES:
patent: 4960943 (1990-10-01), Botta et al.
patent: 4996374 (1991-02-01), Lin et al.
patent: 5064844 (1991-04-01), Van Leeuwen et al.
Dulton et al, Canadian Journal of Chemistry, vol. 31, pp. 138-140 (1953).
Olah, Friedel-Crafts & Related Reactions vol. III, p. 186 (1964).

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