Optically active telluronium imides have been isolated for the first time, by optical resolution of their racemic samples on an optically active column by medium‐pressure column chromatography. The relationship between absolute configuration and their optical properties was clarified, and the mechanism for their racemization was also studied. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)

Thermodynamically and kinetically stabilized asymmetric diaryltelluronium imides were synthesized and optically resolved into their enantiomers on an optically active column using mediumpressure column chromatography. The relationship between the absolute configuration and the optical properties of the chiral telluronium imides was clarified. The mechanism of the racemization, which involves the formation of telluroxides by the hydrolysis of the telluronium imides, was proposed.

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