Basic Ionic Liquid as Catalyst in Synthesis of Dimethyl 4-(2-(2,6-Bis(methoxycarbonyl)pyridine-4-yl)vinyl)pyridine-2,6-dicarboxylate
作者:Xiaobing Liu、Yulin Hu、Wei Fu
DOI:10.1155/2018/9536838
日期:——
In the lanthanide complexes with some organic ligands, the use of pyridine-2,6-dicarboxylic acid derivatives as sensitizers was better than using others. In this paper, dimethyl 4-(2-(2,6-bis(methoxycarbonyl)pyridine-4-yl)vinyl)pyridine-2,6-dicarboxylate (DVDPA) was synthesized starting from dimethyl 4-(chloromethyl)pyridine-2,6-dicarboxylate (CMDPA) catalyzed by ionic liquid [bmim]OH. The results
在镧系元素与一些有机配体的配合物中,使用吡啶-2,6-二羧酸衍生物作为敏化剂比使用其他的更好。本文以4-(氯甲基)吡啶-2二甲酯为原料,合成了4-(2-(2,6-双(甲氧基羰基)吡啶-4-基)乙烯基)吡啶-2,6-二甲酸二甲酯(DVDPA)。 ,6-二羧酸盐 (CMDPA) 由离子液体 [bmim]OH 催化。结果表明,该催化体系在60℃、40 min条件下催化活性最高,当离子液体用量为反应物的10%时,DVDPA产率可达83%。离子液体[bmim]OH经真空干燥脱水后可循环使用5次,催化活性未明显降低,能保持DVDPA收率的稳定性。