| abstract |
NEW MATERIAL:A compound of formula I (C 2 is ethyl, vinyl or ethylidene; the dotted line is a single or double bond; R 1 and R 2 are H, 1W4C aliphatic hydrocarbon residue, phenyl or cyclohexyl; R 3 and R 4 are H or methyl). n USE: Useful as a perfume composition having a woody, floral and fruity aroma. n PROCESS: An alkylnorbornyl-2-aldehyde of formula II is reacted with a carbonyl compound of formula III, e.g. acetone or acetaldehyde, in the presence of an aldol condensation catalyst at 0W200°C, and the reaction product is then dehydrated and reduced to give the aimed compound of formula I . n COPYRIGHT: (C)1984,JPO&Japio |