Cyclopent-1-en-3,5-dione compounds and compositions

Details Cyclopent-1-en-3,5-dione compounds and compositions Cyclopent-1-en-3,5-dione compounds and compositions

1993-10-12

1995-04-18

Reamer, James H.

Perfume compositions

Perfume compositions

Ring containing active ingredient

568379, A61K 746

Patent

active

054079101

ABSTRACT:
The present invention provides novel compounds such as 1,2-dimethyl-4-butyl-cyclopent-1-en-3,5-dione and 1,2-dimethyl-4,4-dibutyl-cyclopent-1-en-3,5-dione, having active floral-type aroma and methods for preparing same.

REFERENCES:
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patent: 4877911 (1989-10-01), Frank
Herrera et al, Chem. Abst., vol. 96, #122, 334q (1982).
Flament et al, Chem. Abst., vol. 91, #122, 292w (1979).
Clemo et al., "Synthesis of Calythrone and Related Cyclopentene-1,3-diones via Rearrangement of 4-Ylidenebutenolides", J.C.S. Perkin I, pp. 1448-1453 (1981).
Hirai et al., "Ruthenium Hydride-Catalyzed Double Bond Migration of 2,5-Dimethoxy-2,5-Dihydrofurans, A New Process for the Preparation of .gamma.-Ketoesters", Chemistry Letters, pp. 23-26 (1982).
Jondiko et al., "A New Approach to Rehthrolone Synthesis", Chem. Soc. Perkin Trans. I, pp. 467-469 (1983).
The Merck Index, p. 754, Windholz, Martha, ed. (Merck & Co., Inc., Tenth Edition) (1983).
Secondini, "Handbook of Perfumes and Flavors", pp. 162-163, pp. 236-239 (Chemical Publishing Co., Inc., New York, N.Y.) (1990).

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