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US 10,807,941 B2Granted
Process for the preparation of polysantol-type compounds
AssigneeFirmenich SA
InventorOliver Knopff
Life of this patent
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Abstract
The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I). The invention additionally relates to a process for preparing a compound of formula (III) using the compound of formula (I) as an intermediate, wherein the process involves elimination of the R3(X)nC(═O)O functional group of the compound of formula (I).
Claims13
A compound of formula (I)
- in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 is a C5-11 branched alkyl or a C6-11 alicyclic group optionally comprising an ether functional group, R2 is a hydrogen atom or a methyl group, n is 0 or 1;
- X is a NR3 group, or oxygen atom;
- and R3 is, independently, a hydrogen atom or a C1-6 alkyl group or an aryl group.
Process for the preparation of a compound of formula (III)
- in the form of any one of its stereoisomers or a mixture thereof, wherein R1 is a C5-11 branched alkyl or a C6-11 alicyclic group optionally comprising an ether functional group, and R2 is a hydrogen atom or a methyl group;
- comprising the step of eliminating an R3(X)nC(═O)O functional group from a compound of formula (I)
- wherein R1 is a C5-11 branched alkyl or a C6-11 alicyclic group optionally comprising an ether functional group, R2 is a hydrogen atom or a methyl group, n is 0 or 1;
- X is a NR3 group, or oxygen atom;
- and R3 is, independently, a hydrogen atom or a C1-6 alkyl group or an aryl group;
- wherein the elimination step is a pyrolysis.
3 more elements
Dependencies are inferred from the claim text.