. Est-ensuite-ajouté-au-goutte-À-goutte, Le mélange est agité et chauffé à 70°C pendant 15 heures Une fois refroidi, le mélange est filtré puis le solide de NaBr est rincé par 20 mL de THF. Le filtrat est évaporé sous vide. L'huile obtenue est purifiée par colonne chromatographique sur gel de silice Le produit

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