Metal-free cross-dehydrogenative coupling of benzimidazoles with aldehydes to N-acylbenzimidazoles
摘要:
A novel and direct cross-dehydrogenative coupling (CDC) between benzimidazoles with aldehydes promoted by di-tert-butyl peroxide (DTBP) was developed. The reactions generated the corresponding N-acylbenzimidazoles in good yields under metal-free conditions. This method has broad substrate scope and high efficiency. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis and Antimicrobial Activity of Some Benzimidazole and 2-Methylbenzimidazole Derivatives
作者:P. Jain、M. Tiwari
DOI:10.14233/ajchem.2017.20328
日期:——
In the present work, benzimidazole and 2-methylbenzimidazole derivatives were synthesized and evaluated for antimicrobial activity against Escherichia coli (Gram-negative bacteria), Staphylococcus aureus (Gram-positive bacteria) and Candida albicans (fungal stain). The structure of the synthesized compounds was confirmed by FTIR, 1H NMR and mass spectroscopy. Antimicrobial activity of all the synthesized compounds was carried out by Broth dilution method to determine MIC value. Compounds P2, P7 and P10 showed better antibacterial activity against Escherichia coli as compared to benzimidazole, 2-methylbenzimidazole and ampicillin. Compounds P8 and P12 showed better antibacterial activity against Staphylococcus aureus as compared to benzimidazole, 2-methylmenzimidazole and ampicillin. Compound P2 and P9 showed better antifungal activity against Candida albicans as compared to benzimidazole, 2-methylbenzimidazole and griseofulvin.
Kumar, P. Raja, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1986, vol. 25, p. 1273 - 1274
作者:Kumar, P. Raja
DOI:——
日期:——
DENNIS, T. J.;KUMAR, K. AKSHAYA;SRIMANNARAYANA, G., ORG. PREP. AND PROCED. INT., 1984, 16, N 3-4, 286-289
作者:DENNIS, T. J.、KUMAR, K. AKSHAYA、SRIMANNARAYANA, G.
DOI:——
日期:——
KUMAR, P. RAJA, INDIAN J. CHEM., 25,(1986) N 12, 1273-1274
作者:KUMAR, P. RAJA
DOI:——
日期:——
Metal-free cross-dehydrogenative coupling of benzimidazoles with aldehydes to N-acylbenzimidazoles
作者:Lin Yu、Min Wang、Lei Wang
DOI:10.1016/j.tet.2014.07.009
日期:2014.9
A novel and direct cross-dehydrogenative coupling (CDC) between benzimidazoles with aldehydes promoted by di-tert-butyl peroxide (DTBP) was developed. The reactions generated the corresponding N-acylbenzimidazoles in good yields under metal-free conditions. This method has broad substrate scope and high efficiency. (C) 2014 Elsevier Ltd. All rights reserved.