Antagonistic metal-directed inductions in catalytic asymmetric aziridination by manganese and iron tetramethylchiroporphyrins

Abstract

Catalytic asymmetric aziridination of styrene by [N-(p-toluenesulfonyl)imino]phenyliodinane was achieved by manganese and iron tetramethylchiroporphyrins; opposite enantioselectivities were obtained with the two metal centers, and possible mechanisms are proposed to explain this unexpected result.