SBA-15-SO3H catalysed room temperature synthesis of 2-aryl benzimidazoles and benzothiazoles

被引：15

作者：

Arun, R. ^{[1
]}

Athira, M. P. ^{[1
]}

Remello, Sebastian Nybin ^{[1
,2
]}

Haridas, Suja ^{[1
,2
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Appl Chem, Kochi, Kerala, India

[2] Cochin Univ Sci & Technol, Interuniv Ctr Nanomat & Devices, Kochi, Kerala, India

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2023年 / 136卷 / 04期

关键词：

Heterogeneous catalysis; Sulfonic acid functionalized SBA-15; Benzimidazoles; Benzothiazoles; SOLVENT-FREE SYNTHESIS; ONE-POT SYNTHESIS; 2-SUBSTITUTED BENZIMIDAZOLES; HETEROGENEOUS CATALYST; HIGHLY EFFICIENT; FUNCTIONALIZED SBA-15; SILICA CATALYSTS; GREEN SYNTHESIS; GRAPHENE OXIDE; ACID;

D O I：

10.1007/s11144-023-02464-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herein, we report the synthesis of sulfonic acid functionalized SBA-15 by post-synthetic functionalization of mesoporous SBA-15. The successful incorporation of sulfonic acid moiety into the SBA-15 framework could be confirmed by physico-chemical characterization. The nature of acidic sites was confirmed using temperature-programmed desorption of ammonia. A simple synthetic route for the synthesis of 2-aryl benzimidazoles and benzothiazoles using SBA-15-SO3H as a green heterogeneous catalyst at room temperature was investigated. 100% conversion and an isolated yield of 70-85% could be obtained. The green synthetic approach offers reaction under ambient conditions, a simple work-up procedure, good to excellent yield and easy product isolation along with good recyclability.

引用

页码：2277 / 2294

页数：18

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