Perfume compositions – Perfume compositions – Ring containing active ingredient
Patent
1995-03-06
1997-06-03
Owens, Amelia
Perfume compositions
Perfume compositions
Ring containing active ingredient
549385, 568808, A61K 746
Patent
active
056354711
ABSTRACT:
The invention is concerned with the 7R/7S-diastereoisomer mixture of the formula ##STR1## in pure form, essentially free of the corresponding (4R)-isomers. The invention also concerns the 2R/2S-diastereoisomer mixture of the formula ##STR2## in pure form which is useful as an intermediate for producing I. In addition, the invention concerns a process for obtaining I by subjecting II to isochromane ring closure. Odorant compositions containing I and the use of I as an odorant are also described.
REFERENCES:
patent: 3910984 (1975-10-01), Nussim et al.
patent: 4162256 (1979-07-01), Sprecker et al.
patent: 5376630 (1994-12-01), Sprecker et al.
S. Arctander, Perfume and Flavor Chemicals I, item 1581, (Montclair, NJ, 1969).
Frater Georg
Muller Urs
Petrzilka Martin
Givaudan-Roure (International) SA
Johnston George W.
Owens Amelia
Smith Catherine R.
Waddell Mark E.
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