Efficient Synthesis of Imidazoles from Aldehydes and 1,2-Diketones under Superheating Conditions by Using a Continuous Flow Microreactor System under Pressure
and efficient method for the synthesis of 2,4,5-trisubstituted imidazoles has been developed by using a continuous flow microreactor system underpressure; aryl-, alkyl-, and heteroaryl-substituted imidazoles were obtained in high yields within 2 min under superheating conditions.
practical aerobic benzylic sp3 C–H oxidation as a key step towards the domino multi-component synthesis of 2,4,5-trisubstituted imidazoles has been reported. This green methodology employs an inexpensive catalytic copper/oxygen system and proceeds under mild reaction conditions. A variety of substituted imidazoles are prepared in moderate to excellent yields from α-methylene ketones using this innovative