Process for the industrial synthesis of sordidin
AssigneesM2I Development, M2I Salin
InventorsSamuel DUFOUR, Valérie LEJEUNE, Hubert SEVESTRE
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Abstract
The present invention relates to a process for preparing sordidin, comprising a step of preparing 4-(2-ethyl-1,3-dioxolan-2-yl)pentan-2-one by means of a reaction in which 2-ethyl-2-(pent-4-en-2-yl)-1,3-dioxolane is oxidized in the presence of a catalyst chosen from the group comprising organometallic complexes of transition metals.
Claims16
Process for preparing sordidin comprising a step for preparing 4-(2-ethyl-1,3-dioxolan-2-yl)pentan-2-one (compound 4)
- by means of a reaction in which 2-ethyl-2-(pent-4-en-2-yl)-1,3-dioxolane (compound 3)
- is oxidised in the presence of a catalyst chosen from the group comprising organometallic complexes of transition metals.
Process for preparing 4-(2-ethyl-1,3-dioxolan-2-yl)pentan-2-one (compound 4)
- by means of a reaction in which 2-ethyl-2-(pent-4-en-2-yl)-1,3-dioxolane (compound 3)
- is oxidised in the presence of a catalyst chosen from the group comprising organometallic complexes of transition metals.
Composition of sordidin characterised in that it comprises the 4 diastereoisomers a, b, c and d of which the respective proportions measured by gas phase chromatography are comprised in the intervals:
- 31-36%;
- 16-20%;
- 16-20%;
- 28-32%
Dependencies are inferred from the claim text.