A facile synthesis of structurally novel 1-aryl-2-arylamino-4-alkyl/phenyl-5-aroyl-1H-imidazoles from amidinothioureas
                                
                                    
                                        作者:Jitendra C. Kaila、Arshi B. Baraiya、Kamala K. Vasu、V. Sudarsanam                                    
                                    
                                        DOI:10.1016/j.tetlet.2008.10.012
                                    
                                    
                                        日期:2008.12
                                    
                                    We report here a convenient and efficient two-step synthesis of 1-aryl-2-arylamino-4-alkyl/phenyl-5-aroyl-1H-imidazoles from easily available amidinothioureas. Guanylation of amidinothioureas 1 using mercury(II) chloride as a thiophile yielded amidinoguanidines 2, which reacted with various phenacyl bromides under mild conditions to afford the corresponding diversely functionalized imidazoles 3 in moderate to good yields. (C) 2008 Elsevier Ltd. All rights reserved.