SYNTHESE A L'AIDE DE SULFONES-XXVI. SYNTHESE D'ALCOOLS ALLYLIQUES ET DE POLYPRENOLS PAR ATTACHEMENT D'UN SYNTHON PRENOL EN POSITION 4 E
The E-hydroxyalkylsulphone PhSO2CH2C(CH3)=CHCH2OH is regioselectively and stereoselectively substituted by Grignard reagents in the presence of copper(II) acetylacetonate, giving E allylic alcohols in high yield.A recurrent synthesis of polyprenols and an efficient preparation of the African Monarch pheromone are described.
Julia, Marc,Verpeaux, Jean-Noel
p. 3289 - 3292
(2007/10/02)
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