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Year 2005, Month 1 (Section Full Articles, Page 211)

Stereoselective synthesis of 1,2-diamino-1,2-diarylethane derivatives

I. V. Bessonov, N. A. Lozinskaya,* V. R. Katashova, M. V. Proskurnina, and N. S. Zefirov

A procedure was developed for selective opening of the cis-2,4,5-triarylimidazoline ring to form erythro-1,2-diamino-1,2-diarylethane derivatives. These ring-opening products, erythro-ethylenediamine derivatives, can undergo quantitative isomerization to threo-ethylenediamine derivatives in the presence of strong bases in DMSO.

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