HOCH2(CHOH)4CHO + 2Cu(OH)2 =加热= HOCH2(CHOH)4COOH + Cu2O + 2H2O
或者
HOCH2(CHOH)4CHO + 2Cu(OH)2 + NaOH =加热= HOCH2(CHOH)4COONa + Cu2O + 3H2O