Process for the preparation of novel unsaturated macrocyclic ket

Details Process for the preparation of novel unsaturated macrocyclic ket Process for the preparation of novel unsaturated macrocyclic ket

1981-03-17

1982-08-24

Trousof, Natalie

Compositions

Electrically conductive or emissive compositions

Metal compound containing

568325, 426534, A61K 746, C07C 49547

Patent

active

043460232

ABSTRACT:
New unsaturated macrocyclic ketones are obtained via a process which consists in reacting a dialdehyde with a tetraalkyldiphosphonate ester. The new ketones are useful intermediates for the preparation of cyclopentadecanone and its higher methyl-homologue, known fragrant substances. New ketones possess also direct utility as musky odorants.

REFERENCES:
patent: 3681396 (1972-08-01), Mookherjee et al.
patent: 3923699 (1975-12-01), Komatsu et al.
patent: 4277625 (1981-07-01), Schulte-Elte et al.

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