Ruthenium-catalyzed synthesis of benzimidazoles from N-alkyl-1,2- diaminobenzenes via alkyl group transfer

Bulletin of the Korean Chemical Society

Volumn 29, Issue 6, 2008, Pages 1097-1098

  Chan, Sik Cho ^a   Jun, Uk Kim ^a  

^a Kyungpook National University   (South Korea)

Author keywords

Alkyl group transfer; Benzimidazoles; Cyclization; N alkyl 1,2 diaminobenzenes; Ruthenium catalyst

Indexed keywords

EID: 45849105582     PISSN: 02532964     EISSN: 12295949     Source Type: Journal    
DOI: 10.5012/bkcs.2008.29.6.1097     Document Type: Letter

References (26)

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26. 3 (0.02 mmol) and toluene (5 mL). After the system was stirred at 100°C for 20 h, the reaction mixture was passed through a short silica gel column (ethyl acetate-hexane mixture) to eliminate inorganic salts. Removal of the solvent left a crude mixture, which was separated by thin layer chromatography (silica gel, ethyl acetate-hexane mixture) to give benzimidazoles.