Abstract: The present invention relates to a process for the preparation of linalool oxide or of linalool oxide-containing mixtures, in which linalool or linalool-containing mixtures are oxidized in the presence of enzymes.
Abstract: Process for the purification of crude .beta.-phenylethyl alcohol by azeotropic distillation in the presence of alkanolamines in which the alkylene chain contains 2 to 4 carbon atoms and is optionally substituted by 1 to 4 C.sub.1 -C.sub.3 -alkyl groups.
Abstract: Process for the preparation of piperonylidenecrotonic acids amides of the formula ##STR1## in which R.sub.1 and R.sub.2 have the meaning given in the disclosure wherein piperonal is reacted with crotonic acid amides of the formula ##STR2## in the presence of hydroxides of the formulaA.sup.+ OH.sup.-in whichA.sup.+ represents a quaternary ammonium or phosphonium group or an alkali metal complex with neutral organic complex ligands,and polar aprotic or polar, sterically hindered protic organic solvents which are inert under the reaction conditions.
Abstract: Process for the preparation of piperonylidenecrotonic acid amides of the formula ##STR1## in which R.sub.1 and R.sub.2 have the meaning given in the disclosure wherein piperonal is reacted with crotonic acid amides of the formula ##STR2## in the presence of alkali metal hydroxides and dipolar aprotic diluents which are inert under the reaction conditions.