Réaction #2380305
ord-d7869253a49043a1b675031e29f82c8d
Équation de réaction
Réactifs
Aucun
Solvants
Conditions de réaction
Conditions détaillées
See reaction.notes.procedure_details.
Traitement
- 1Autrewas reacted at 160° C. for 1.5 hours
- 2Extractionextracted from ethyl acetate
- 3SéchageThe extract was dried over anhydrous magnesium sulfate
- 4Concentrationconcentrated under a reduced pressure
- 5AutreThe residue thus obtained
Mode opératoire
8.43 g of the compound(51.6 mM) prepared in Step 1 above was added to 84.36 g of polyphosporic acid, which was reacted at 160° C. for 1.5 hours with stirring. The reaction solution was poured into ice water, neutralized with ammonia water, and extracted from ethyl acetate. The extract was dried over anhydrous magnesium sulfate and concentrated under a reduced pressure. The residue thus obtained was subjected to silica gel column chromatography using a mixed solvent of methanol:dichloromethane (1:20 (v/v)) as a developing solvent to give 6.48 g of the title compound as oily substance.