The effect of antioxidation and color stabilization was greatly enhanced when apple polyphenol was used with ascorbic acid or nicotinic amide. 苹果多酚与抗坏血酸或烟酰胺配合使用,抗氧化与护色效果明显增强。
3-aminopyridine was prepared from the Hofmann reaction of nicotinic amide in 93% yield. 烟酰胺通过Hofmann降解制得3-氨基吡啶,产率为93%。