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作 者:陈星[1] 王小丽[1] 杨刚[1] 邢卫红[1] 徐南平[1]
机构地区:[1]南京工业大学材料化学工程国家重点实验室,江苏南京210009
出 处:《南京工业大学学报(自然科学版)》2015年第1期49-53,共5页Journal of Nanjing Tech University(Natural Science Edition)
基 金:国家自然科学基金(20576052)
摘 要:以白屈氨酸为原料,经酯化反应得到4-羟基-2,6-二乙酯基吡啶(化合物1),然后酰胺化得到4-羟基-2,6-双(N,N-二乙基甲酰胺)吡啶(化合物2),再与1,2-二溴乙烷进行反应得到4-(2-溴乙氧基-2,6-二(N,N-二乙基甲酰胺)吡啶(化合物3),最后用NaBH4和I2混合物对酰胺进行还原反应,得到目标产物4-(2-溴乙氧基)-2,6-二(N,N-二乙胺基甲基)吡啶(化合物4)。产物通过红外光谱(IR)、元素分析和核磁共振氢谱(1H-NMR)确认结构。当NaBH4与I2的摩尔比为3时,目标产物的产率可以达到32.3%。The chelidamic acid was esterified to obtain 4-hydroxypyridine-2,6-dicarboxylate (compound 1). Then, the compound I was reacted with diethylamine to give 4-hydroxy-2,6-bis [ N, N-( diethyl ) earboxamide ] pyridine (compound 2).The compound 2 was reacted with 1,2-dibromoethane to give 4-( 2- bromoethoxy ) -2,6-his [ N, N- (diethyl) carboxamide I pyridine ( compound 3). Finally, the compound 3 was reduced to obtain the target product 4-(2-bromoethoxy) -2,6-his [ N, N-( diethyl ) aminomethyl I pyridine (compound 4) by sodium borohydride ( NaBIt4) and iodine ( 12 ). The product was characterized by infrared spectroscopy (IR), elemental analysis and nuclear magnetic resonance hydrogen spectrum (IH-NMR) .When the molar ratio of NaBH4 and 12 was 3, the yield of the target product reached 32. 3%.
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