van Leusen

• Van Leusen AM, Wildeman J, Oldenziel OH. Chemistry of sulfonylmethyl isocyanides. 12. Base-induced cycloaddition of sulfonylmethyl isocyanides to carbon,nitrogen double bonds. Synthesis of 1,5-disubstituted and 1,4,5-trisubstituted imidazoles from aldimines and imidoyl chlorides J. Org. Chem. 1977, 42, 1153-1159.