Silicon can! A convenient synthesis of enantiopure (S)-2-(diphenylmethylsilyl)pyrrolidine is described and its organocatalytic activity in asymmetric Michael reactions is demonstrated (see scheme). By using 10 mol % of this novel organocatalyst, the addition of aldehydes to nitroolefins affords products with high stereoselectivities (d.r. ≤97:3 and e.r. ≤95:5) in yields up to 99 %.
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Husmann et al. (2010) studied this question.
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