Introduction of Agar-Entrapping as a Novel Strategy to Improve the Catalytic Activity of Moisture-Absorbing Acidic Ionic Liquids: A Case Study in the Synthesis of 5-Arylidene Barbituric Acids and Pyrano[2,3-d]Pyrimidinones

被引：10

作者：

Moghaddampour, Issa Mousazadeh ^{[1
]}

Shirini, Farhad ^{[1
]}

Langarudi, Mohaddeseh Safarpoor Nikoo ^{[1
]}

机构：

[1] Univ Guilan, Coll Sci, Dept Chem, Univ Campus 2, Rasht 4133519141, Iran

来源：

POLYCYCLIC AROMATIC COMPOUNDS | 2022年 / 42卷 / 05期

关键词：

DABCO-based ionic liquids; agar-entrapped catalyst; knoevenagel condensation; pyrano[2; 3-d]pyrimidineones; DERIVATIVES; NANOPARTICLES; NANOCATALYST;

D O I：

10.1080/10406638.2020.1836003

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

In this article, to improve the detrimental character of ionic liquids, called moisture absorbing, agar-trapping is introduced as an affordable and straightforward protocol. Using inexpensive biopolymer, agar, as a trapper is a brilliant advantage of the method led to an environmentally sustainable development. Moreover, to show the effect of this method, the catalytic ability of a prepared agar-trapped acidic ionic liquid and its free form was experimentally compared in the synthesis of barbituric and thiobarbituric acid derivatives. In the presence of the entrapped catalyst and under the optimized conditions the products were obtained in high yields during short reactions time.

引用

页码：2471 / 2482

页数：12

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