Isolongifolanol derivatives, their production and their use

Details Isolongifolanol derivatives, their production and their use Isolongifolanol derivatives, their production and their use

1995-02-22

1997-12-02

Cintins, Marianne M.

Perfume compositions

Perfume compositions

Ring containing active ingredient

512 14, 568612, 568665, A61K 746

Patent

active

056936060

ABSTRACT:
The described compounds of the general formula A, in which the wavy lines mean .alpha. and .beta. configuration and R.sub.1 and R.sub.2 mean hydrogen, methyl or ethyl groups ##STR1## are new and useful as odorants or components or mixtures of odorants or perfume oils. Their production in a method known per se, involves oxidation of isolongifolene obtained from longifolene to isolongifolane, which is then equilibrated with base extraction and/or reduced to isolongifolan-3-ol and this is then reacted with a symmetric acetal of the formula R.sub.2 --OCHR.sub.1 --O--R.sub.2, in which R.sub.1 is hydrogen or methyl and R.sub.2 is methyl, ethyl or propyl.

REFERENCES:
patent: 3647847 (1972-03-01), Curtis et al.
patent: 3718698 (1973-02-01), Hall
patent: 4041084 (1977-08-01), Light et al.
patent: 4439354 (1984-03-01), Light et al.
patent: 5260459 (1993-11-01), Brunke et al.
patent: 5426095 (1995-06-01), Brunke et al.

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