A green and efficient method for the synthesis of 2,4,5-triarylimidazoles by one-step condensation reaction of benzil, aromatic aldehyde, and ammonium acetate under catalyst-free, solvent-free, and microwave-irradiation conditions is reported. This method had many dramatic advantages, such as the short reaction time (3–5 min), good yields (80–99%), environmental friendliness, and convenient operation
Direct synthesis of 2,4,5-trisubstituted imidazoles from primary alcohols by diruthenium(<scp>ii</scp>) catalysts under aerobic conditions
作者:Saranya Sundar、Ramesh Rengan
DOI:10.1039/c8ob02785d
日期:——
report a straightforward synthetic approach to 2,4,5-trisubstituted imidazoles from readily available primary alcohols using arene diruthenium(II) catalysts. Dinuclear arene ruthenium complexes have been synthesized and structurally characterized with the aid of analytical and spectral techniques. A library of 2,4,5-trisubstituted imidazoles was achieved with a yield up to 95% by loading 0.25 mol% of the