F. Benfatti, F. de Nanteuil, J. Waser
Jan 6, 2012
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Organic letters
Abstract
The first method for the [3 + 2] annulation of donor-acceptor aminocyclopropanes with aldehydes is reported. The reaction is catalyzed by iron trichloride on alumina in yields up to 99% and with excellent cis selectivities (up to >20:1) and represents a stereoselective and atom economic access to valuable 2-aminotetrahydrofurans, which constitute the core of DNA and RNA.