Use of cycloaliphatic ketones as perfuming and flavoring ingredi

Details Use of cycloaliphatic ketones as perfuming and flavoring ingredi Use of cycloaliphatic ketones as perfuming and flavoring ingredi

1989-02-03

1991-02-05

Reamer, James H.

Perfume compositions

Perfume compositions

Ring containing active ingredient

25217411, 252 86, 426538, 424 764, 131276, A61K 746

Patent

active

049904965

ABSTRACT:
Optically active isomers of alpha-damascone of formula ##STR1## wherein the wavy line designates a C--C bond of cis or trans configuration and its 3-buten-1-one derivative are new compounds having utility in the perfume and flavor industry. They can be prepared starting from an enolate of formula ##STR2## where the wavy line has the meaning given above and Me designates an alkali metal, preferably lithium or magnesium, by treating said enolate with a bifunctional nitrogen derivative of formula ##STR3## where the asterisk identifies a center of chirality;

REFERENCES:
patent: 3956392 (1976-05-01), de Haan et al.
patent: 4136066 (1979-01-01), de Haan et al.
patent: 4198309 (1980-04-01), Mookherjee
patent: 4210553 (1980-07-01), Trenkle et al.
patent: 4217252 (1980-08-01), Trenkle et al.
Ohloff et al, Helv-Chim. Acta., vol. 53, p. 531 (1970).

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