Conversions of thiirene 1-oxides to α-iminothioketones or oxazoles through probable intermediates sulfilimines

Article abstract of DOI:10.1246/cl.2002.314

Three thiirene 1-oxides 1, which possess bulky alkyl substituents at the 2- and 3-positions, afforded α-iminothioketones in 59-69% yields on successive treatment with trifluoroacetic anhydride and p-toluenesulfonamide, whereas 1 furnished oxazoles in 65-8