Process for the preparation of delta- and epsilon-damascones

Details Process for the preparation of delta- and epsilon-damascones Process for the preparation of delta- and epsilon-damascones

1982-08-19

1984-07-17

Reamer, James H.

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

Organic compounds

Oxygen containing

568361, C07C 4567, C07C 4551

Patent

active

044607920

ABSTRACT:
Useful perfumery ingredients delta- and epsilon-damascone are prepared by a process which consists in an anionic cleavage, in the presence of a strong base of a diallyl alcohol of formula ##STR1## wherein the dashed lines in position 3 or 4 of the ring designate a double bond, followed by an isomerization of the terminal double bond of the thus obtained product by means of an acidic isomerizing agent.

REFERENCES:
patent: 3887625 (1975-06-01), Schulte-Elte
patent: 3976700 (1976-08-01), DeSimone

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