Chemoselective oxidation of (arylthioalkylpyrrolidino)carbenechromium(0) pentacarbonyl complexes; synthesis (arylsulfinyl and arylsulfonylalkylpyrrolidino)carbene complexes

The chemoselective oxidn. of pentacarbonyl[amino(arylthioalkyl)carbene]chromium(0) complexes by using Nsulfonyloxaziridine or dimethyldioxirane affords the corresponding sulfoxide or sulfone derivs. in good to high chem. yields.