By UPENDER K. NADIR* and VEERINDER K. KOUL (Chemistry Department, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi-110016, India) ... Summary Reaction of dimethyloxosulphonium methylide with certain N-arylsulphonyl-2-phenylaziridines, which on heating do not yield azomethine ylides, gives the corre- sponding azetidines. ... METHYLENE transfer from sulphur ylides to aziridines is an attractive approach to the synthesis of azetidines, which are of considerable current ...