| abstract |
New molecule with sandalwood smell,nprocedure for its preparation and use asnodorantn n n The present invention relates to a new odorant 1, its preparation from (1 R ) - (-) - nopol (2) and its usefulness as a sandalwood ingredient in the production of perfume compositions. Obtaining 1 from 2 is achieved in 5 stages with an overall yield of 25%, by means of the following transformations: (a) catalytic hydrogenation, (b) oxidation to aldehyde of the hydroxyl group, (c) aldol condensation of the resulting aldehyde with butanone, (d) deconjugation and? -methylation of the aldol condensation product, and (e) reduction of carbonyl group. |