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

1979-09-19

1981-11-24

Trousof, Natalie

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

Organic compounds

Oxygen containing

252522R, 426535, 568343, 568350, 568375, C07C 4562, C07C 4545

Patent

active

043026079

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: 3732214 (1973-05-01), Surmatis et al.
Abe, Syozo et al. Cosmetics and Perfumery, vol. 88, Jun. 1973, pp. 67-74.
Baker, Raymond et al., J. Chem. Soc., Chem. Comm. (1974), pp. 545-546.
Chemical Abstracts, vol. 83 (1975), No. 118,092y.

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