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US 7,126,033 B2Granted
Method for isomerizing allyl alcohols
AssigneeBASF SE
InventorsFrank Haese, Klaus Ebel, Kirsten Burkart, Signe Unverricht, Peter Münster
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Abstract
The present invention relates to a process for isomerizing reactant allyl alcohols to product allyl alcohols in the presence of a catalyst, wherein the reactant allyl alcohol is rearranged to product allyl alcohol in semicontinuous or continuous mode in a catalyst-containing suitable reactor. In particular, the process according to the invention is used to prepare linalool from Geraniol and/or nerol.
Claims12
A process for isomerizing reactant allyl alcohols of the general formula (I) to product allyl alcohols of the general formula (II)
- where R1 to R5 are each hydrogen or a mono- or polyunsaturated or saturated C1–C12-alkyl which may optionally be subtituted, wherein at least one reactant allyl alcohol or mixtures thereof is rearranged in semicontinuous mode to give the corresponding product allyl alcohol, by simultaneously metering in at least one reactant allyl alcohol or mixtures thereof into a catalyst-containing suitable reactor and wherein the catalyst used is one dioxotungsten(VI) complex or a mixture of different dioxotungsten(VI) complexes of the general formula III
- where
- L1, L2 are each independently a ligand selected from the group of the amino alcohols, the amino phenols and mixtures thereof, and
- m, n are each the number 1 or 2.
1 more element
Dependencies are inferred from the claim text.