Journal
TETRAHEDRON LETTERS
Volume 57, Issue 41, Pages 4595-4598Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2016.08.099
Keywords
SiO2 supported FeCl3 catalyst activation; C-C bond cleavage; Benzimidazole; Recyclable catalyst
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Funding
- Council of Scientific and Industrial Research (CSIR), Govt. of India [02(0235)/15/EMR-II]
- Department of Science and Technology (DST), Govt. of India
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Silica-ferric chloride (SiO2-FeCl3) supported reagent was successfully utilized as recyclable catalyst for the general and highly efficient synthesis of 2-substituted benzimidazole by the condensation of 1,2-diamino benzene and beta-ketoesteriamide followed by original C-sp2-C(sp)3 bond cleavage. Evidences in favor of C-C (alpha-beta) bond cleavage of beta-ketoestersiamides are established. (C) 2016 Elsevier Ltd. All rights reserved.
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