Abstract A rapid, mild and high-yielding method for dehydrogenation of a variety of structurally diverse 2-imidazolines to imidazoles using trichloroisocyanuric acid (TCCA) in the presence of DBU is reported. Chemoselective oxidation of 2-imidazolines can be achieved in the presence of sulfide and alcohol. The mild conditions of this procedure and the absence of any transition metal make this reaction suitable for safe laboratory use.
