羧酸衍生物 C R Y C C R OH R R O R ⅹ=F,Cl,Br,I 羧酸 酰卤 酸酐 Carboxylic acid Acyl halide Acid anhydride C C R一C≡N R OR R NH 酯 酰胺 腈 Ester Amide NitreOrganic Chemistry Organic Chemistry Xiamen Xiamen University University R C O Y R C O OH R C O X R C O O R C O OR' R C O NH 2 C R O R C N 羧酸衍生物 羧酸 酰卤 酸酐 酯 酰胺 腈 X = F, Cl, Br, I Ca rboxy l i c a c i d A c y l h a l ide A c i d an h y d r ide Es t e r A m i d e Ni tr l e