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Title

From Cationic to Anionic Helicenes: New Reactivity through Umpolung

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Published in Journal of Organic Chemistry. 2011, vol. 76, no. 8, p. 2716-2722
Abstract Using a two-step reduction/metalation procedure, highly stable chiral carbenium ions are transformed into reactive carbanion intermediates. Interesting polar ketone and thioamide products are the results of this umpolung that occurs with complete retention of configuration of the helical backbone.
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Other version: http://pubs.acs.org/doi/abs/10.1021/jo200071n
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Deposited on : 2011-04-11

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