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Org Lett. 2014 May 16;16(10):2740-3. doi: 10.1021/ol501024y. Epub 2014 May 01.

Stereospecific functionalization of iodoaziridines via unstabilized aziridinyllithiums generated by iodine-lithium exchange.

Organic letters

Tom Boultwood, James A Bull

Affiliations

  1. Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K.

PMID: 24786465 DOI: 10.1021/ol501024y

Abstract

Lithium-iodine exchange on alkyl- or aryl-substituted N-tosyliodoaziridines afforded unstabilized aziridinyllithiums, which were subsequently trapped at low temperatures with a range of carbon and heteroatom electrophiles affording cis-substituted aziridines exclusively. When using isocyanates as electrophiles, access to aziridine carboxamides or 1,3,5-trisubstituted hydantoins can be selected by control of reaction temperature.

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