Cyclizations of N-stannylaminyl radicals onto nitriles |
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| Authors: | Benati Luisa Bencivenni Giorgio Leardini Rino Minozzi Matteo Nanni Daniele Scialpi Rosanna Spagnolo Piero Zanardi Giuseppe Rizzoli Corrado |
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| Institution: | Dipartimento di Chimica Organica A. Mangini, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. |
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| Abstract: | reaction: see text] Stannylaminyl radicals derived from radical reactions of Bu(3)SnH with azidoalkylmalononitriles exhibit highly efficient 5- and 6-exo cyclization onto either nitrile group to give aminoiminyl radicals that in turn are reduced to amidines or undergo successive 5-exo cyclization onto an internal alkene. |
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