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Four aminopropylsilicas, prepared following different synthetic methodologies, namely by the grafting method (MCM-41-NH 2 , KG-60-NH 2 ) and by the sol-gel methodology (HMS-NH 2 and APS-NH 2 ) have been tested in classical C C forming reactions such as the nitroaldol condensation between nitromethane and benzaldehyde to afford nitrostyrene and the Michael addition...
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