【摘要】 以没食子酸甲酯为原料,与1-溴代十二烷醚化生成3,4,5-三-(十二烷氧基)苯甲酸甲酯,然后采用原位生成的硼氢化锂还原成3,4,5-三-(十二烷氧基)苯甲醇,再用氯铬酸吡啶盐(PCC)氧化成3,4,5-三-(十二烷氧基)苯甲醛,最后与巴比妥酸进行Knoevenagel缩合反应得到了标题化合物。该合成路线简单,原料价廉,操作简便,产率高,易于常量合成。更多还原

【Abstract】 This paper provided a more simple,convenient and efficient route for synthesis of 5-[3,4,5-tris(n-dodecan-1-yloxy)benzylidene]-2,4,6-(1H,3H)-pyrimidine-trione.Firstly,3,4,5-tris(n-dodecan-1-yloxy)benzyl alcohol was synthesized by the alkylation of methyl-3,4,5-trihydroxylbenzoate with 1-bromododecane,followed by the reduction of 3,4,5-tris(n-dodecan-1-yloxy)benzoate with lithium borohydride;then 3,4,5-tris(n-dodecan-1-yloxy)benzyl aldehyde was obtained through oxidation of 3,4,5-tris(n-dodecan-1-yloxy)benzyl alcohol with pyridinium chlorochromate;and finally the compound was synthesized by the Knoevenagel condensation reaction with barbituric acid.更多还原