Tat-Shing Lai, Chi-Ming Che, Hoi-Lun Kwong and Shie-Ming Peng
A D4-manganese(III) porphyrin is utilized to catalyze aziridination of styrene-type substrates with enantiomeric excess ranging from 43 to 68%; evidence for a MnIV reactive intermediate in the catalysis was obtained from spectroscopic studies and organic product analysis.