Cellulose Sulfuric Acid: Novel and Efficient Biodegradable and Recyclable Acid Catalyst for the Solid-State Synthesis of Thiadiazolo Benzimidazoles

被引：17

作者：

Kuarm, B. Suresh ^{[1
]}

Madhav, J. Venu ^{[1
]}

Rajitha, B. ^{[1
]}

Reddy, Y. Thirupathi ^{[2
]}

Reddy, P. Narsimha ^{[2
]}

Crooks, Peter A. ^{[2
]}

机构：

[1] Natl Inst Technol, Dept Chem, Warangal, AP, India

[2] Univ Kentucky, Coll Pharm, Dept Pharmaceut Sci, Lexington, KY USA

来源：

SYNTHETIC COMMUNICATIONS | 2011年 / 41卷 / 05期

关键词：

Benzimidazoles; benzo[c][1; 2; 5]thiadiazole-4; 5-diamine; cellulose sulfuric acid; different aldehydes; ONE-POT SYNTHESIS; SUBSTITUTED BENZIMIDAZOLE; PHASE SYNTHESIS; RING; CONDENSATION; OXIDATION; ALDEHYDES; INDOLE; SERIES; AGENTS;

D O I：

10.1080/00397911003632899

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[image omitted] An efficient method for the synthesis of 2-substituted benzimidazoles has been developed. In this method, benzo[c][1,2,5]thiadiazole-4,5-diamine was condensed with different aldehydes in the presence of cellulose sulfuric acid under solvent-free conditions by simple physical grinding of reactants using a mortar and pestle at room temperature. The methodology is mild, high-yielding, and green, and the catalyst could be easily recycled.

引用

页码：662 / 669

页数：8

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