Preparation of nanomagnetic alginate modified by histidine as an antibacterial agent and a reusable green catalyst for the three-component synthesis of 2-amino-4H-chromenes and tetrahydropyrimidines

被引：34

作者：

Kenari, Moghadaseh Keshvari ^{[1
]}

Asghari, Sakineh ^{[1
]}

Maleki, Behrooz ^{[1
]}

Mohseni, Mojtaba ^{[2
]}

机构：

[1] Univ Mazandaran, Fac Chem, Dept Organ Chem, Babolsar, Iran

[2] Univ Mazandaran, Fac Sci, Dept Microbiol, Babolsar 4741695447, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2024年 / 50卷 / 02期

关键词：

Histidine-alginate nanomagnetic catalyst; Green catalyst; 2-Amino-4H-chromenes; 1,2,3,6-Tetrahydro pyrimidines; Antibacterial agent; FUNCTIONALIZED FE3O4 NANOPARTICLES; POT MULTICOMPONENT SYNTHESIS; CONVENIENT SYNTHESIS; MAGNETIC CATALYST; EFFICIENT; DERIVATIVES; NANOCATALYST; POLYMER; FACILE; NITRILES;

D O I：

10.1007/s11164-023-05165-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel acid-base nanocatalyst (MNPs@Alg-Pr-His) was synthesized using avail-able materials (nanomagnetic alginate core and histidine) via a facile strategy. After characterization, its efficiency was investigated in the synthesis of 2-amino-4H-chromene and 1,2,3,6-tetrahydropyrimidine derivatives. This nanobiocatalyst showed remarkable catalytic efficiency in both reactions (the reaction yields for the first reaction: 89-96% and for the second reaction: 68-85%). This catalyst was reus-able and recyclable and still showed good activity after five runs. The antibacte-rial effect of the histidine, alginate, and MNPs@Alg-Pr-His was evaluated against a Gram-positive bacterium (S.aureus) and a Gram-negative bacterium (E. coli) by the disk diffusion method. It is noticeable that MNPs@Alg-Pr-His, unlike histidine and alginate, showed more antibacterial activity against Gram-negative bacterium (28.0 +/- 1.4) than Gram-positive bacterium (19.0 +/- 1.4).

引用

页码：905 / 924

页数：20

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