Cross-linked poly(diallyldimethylammonium chloride) as an efficient solid-liquid phase transfer catalyst in reduction of carbonyl compounds with sodium borohydride

Cross-linked poly(diallyldimethylammonium chloride) resin was synthesized as an efficient polymeric phase transfer catalyst. This quaternized polymer catalyzed the chemoselective reduction of aldehydes and ketones by NaBH4 to give the corresponding alcohols in high yields under mild conditions.