摘要:
Reaction of N-aryl-beta -amino alcohols with p-toluenesulphonyl chloride under phase transfer catalytic condition gave the corresponding N-aryl aziridines in good yields, whereas N-alkyl-beta -amino alcohol [for e.g., L-ephedrine] gave the corresponding N-tosyl derivative as the major product, along with the expected N-alkyl aziridines in lower yield.