利用氯化苄基三乙基铵为催化剂 ,改进文献方法提高了 2 -氨基 - 4,6 -二甲氧基嘧啶 (AMP)的产率。在无水乙醇中回流制得 Co Cl2 · 6 H2 O与 AMP的 1∶ 2固态配合物 ,用化学分析和元素分析确定其组成为 Co (AMP) 2 Cl2 ;用 IR,1H NMR法推测了其结构 ,中心离子 Co2 + 为 sp3 d2 杂化 ;用TG- DTG法分析了它的热稳定性 ,用 DSC法测定其熔点为 1 97.71℃ ,熔化焓为 43 .2 6 k J/mol The improved literature method improves the yield of 2 - amino - 4,6 - dimethoxypyrimidine (AMP) by using benzyltriethylammonium chloride as catalyst. A 1: 2 solid complex of Co Cl2 · 6H 2 O and AMP was obtained by refluxing in absolute ethanol. The composition of the complex was determined as Co (AMP) 2 Cl2 by chemical analysis and elemental analysis. The results of IR and 1H NMR Structure, the central ion Co2 + sp3 d2 hybridization; TG-DTG analysis of its thermal stability, as determined by DSC melting point of 1 97.71 ° C, the enthalpy of melting of 43.26 k J / mol