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以金属硫酸氢盐M(HSO4)n(Ca(HSO4)2,Zn(HSO4)2和过硫酸氢钾制剂oxone○R)为催化剂催化醛、1,3-二羰基化合物和尿素进行缩合反应,在90℃及无溶剂的条件下高收率、一锅法合成了3,4-二氢嘧啶-2(1H)-酮.
The condensation reaction of aldehydes, 1,3-dicarbonyl compounds and urea was catalyzed by metal hydrosulfite M (HSO4) n (Ca (HSO4) 2, Zn (HSO4) 2 and oxone ○ R) 3,4-Dihydropyrimidin-2 (1H) -one was synthesized by one-pot method with high yield without solvent at 90 ℃.