study focuses on synthesis of benzimidazole derivatives by numerous homogeneous catalysts related from s-block, pblock, transition metal, inner transition metal and environmentally benign synthetic approaches, via heterogeneous catalyst in metal-free conditions. Benzimidazole has several applications in pharmaceuticals, agrochemicals and fine chemicals. Its scaffolds are omnipresent in several bioactive natural products and pharmaceutically important compounds. This review highlights synthetic approaches and studies of benzimidazole reported from the year 2020 onwards.
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