[Ch][TAPSO] As an Efficient Ionic Liquid Catalyst for One-Pot Synthesis ofTetrahydro-4H-chromenes and 3,4-Dihydropyrano[c]chromenes

被引：2

作者：

Verma, Usha Kumari ^{[1
]}

Manhas, Akanksha ^{[1
]}

Kapoor, Kamal K. ^{[1
]}

机构：

[1] Univ Jammu, Dept Chem, Jammu 180006, Jammu & Kashmir, India

来源：

CHEMISTRYSELECT | 2023年 / 8卷 / 09期

关键词：

Ch][TAPSO; 3; 4-dihydropyrano[c]chromenes; ionic liquid; rhodamine B; TAPSO; tetrahydro-4H-chromenes; GREEN SYNTHESIS; MULTICOMPONENT REACTIONS; BIOLOGICAL EVALUATION; CHROMENE DERIVATIVES; ORGANOCATALYST; NANOPARTICLES; PYRAN;

D O I：

10.1002/slct.202204961

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cholinium N-Tris(hydroxymethyl)methyl-3-amino-2-hydroxypropanesulfonate [Ch][TAPSO] has been found as an efficient ionic liquid catalyst for the synthesis of tetrahydro-4H-chromenes and 3,4-dihydropyrano[c]chromenes in water and EtOH : Water (3 : 2) respectively. [Ch][TAPSO] being a basic IL has also been observed to extract acidic compounds such as rhodamine B from IL- immiscible organic solvent such as acetone through acid-base interaction. The extraction process of fluorescent dye rhodamine B was determined by ultraviolet-visible (UV-Vis) spectroscopy. The observed percentage extraction rate is 100 % upto 6 mM solution of rhodamine in acetone. This method results in faster reaction with operational simplicity and excellent yields of the products. Furthermore, the catalyst has a great capacity for reutilisation.

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页数：7

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