Triethyl-phosphite is synthesized,substituting N,N-diethyl amiline with pyridine to absorb hydrogen chloride which is produced in the synthetic reaction,its yield is 84%.

• 用吡啶代替N，N-二乙基苯胺吸收反应过程中产生的氯化氢合成亚磷酸三乙酯，反应收率为84%25。