PROCESS FOR THE PREPARATION OF ETHYLGERANONITRILE

摘要

The present invention relates to a process for the preparation of ethylgeranonitrile (3,7-dimethyl-2,6-nonadienenitrile) by converting ethylheptenone with a deprotonated nitrile (acetonitrile, cyanoacetic acid or cyanoacetic acid ester) followed, if appropriate, by hydrolysis and decarboxylation. In addition, the invention relates to mixtures comprising 3,7-dimethyl-2,6-nonadienenitrile and at least one compound selected from the group of the compounds 3,7-dimethyl-3,6-nonadienenitrile and 3-methylene-7-methyl-6-nonenenitrile, and fragrance compositions comprising them.