Treatment of 4-phenoxyphenol (I) with N,N-dimethylthiocarbamoyl chloride afforded the O-aryl thiocarbamate (II), which was thermally rearranged to the S-aryl thiocarbamate (III). Basic hydrolysis of (III) provided 4-phenoxythiophenol (IV). Subsequent alkylation of (IV) with allyl bromide (V) led to the allyl thioether (VI). Further oxidation of (VI) with m-chloroperbenzoic acid (MCPBA) gave rise to the epoxisulfone (VII). This was finally converted to the target thiirane derivative upon treatment with ammonium thiocyanate.