CH2OH-(CHOH)4-COH +Br2+H2O=CH2OH-(CHOH)4-COOH+2HBr
глюконовая к-та
CH2OH-(CHOH)4-COOH+HO-CH3(t,H+) =CH2-(CHOH)4-CO-O-CH3+H2O
метиловый эфир глюконовой к-ты
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