Process for preparing a floral odorous perfume and perfume obtai

Details Process for preparing a floral odorous perfume and perfume obtai Process for preparing a floral odorous perfume and perfume obtai

1997-01-14

1998-10-06

Mosley, Terressa

Perfume compositions

Perfume compositions

Ring containing active ingredient

A61K 746

Patent

active

058176160

ABSTRACT:
This invention relates to a process for producing a composition comprising 4,4-dimethyl-6-isopropyl-1,2,3, 4-tetrahydronaphthalen-1-one. The composition of the invention is prepared by the oxidation of a 1,1-dimethyl-7-isopropyl -1,2,3,4-tetrahydronaphthalene raw material, which may be prepared by rearrangement and aromatization of longifolene. The invention also relates to perfume comprising the composition of the invention. The process uses organic acid salts of metals, including Cr, Fe, Mn, Ni, and the like, as oxidizing catalysts to produce the compound, which has a floral odor that diffuses easily and is long lasting. The fragrance of 4,4-dimethyl-6-isopropyl-1,2,3, 4-tetrahydronaphthalen-1-one is similar to various natural essential oils and their mixtures. Due to both its floral and woody odor, the 4,4-dimethyl-6-isopropyl-1,2,3, 4-tetrahydronaphthalen-1-one compound can be advantageously used as an ingredient in various types of perfumery materials.

REFERENCES:
Abstract : 509294 "Aromatization Reaction of Longifolene" Liu; Zhen et al. 1992), 12(4) pp. 269-277.
Z. Liu, et al., "Aromatization Reaction of Longifolene," Chem. & Indus. Forest Prods., 12(4):1-12 (1992) (Full English Translation).

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