Chromium(II)-catalyzed diastereoselectiv
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Ulrich Groth; Marc Jung; Steffen Lang; Thilo Schuppler
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Article
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2009
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Elsevier Science
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French
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Using 20 mol % of CrCl 2 as catalyst, manganese powder as reducing agent, and TMS-Cl as scavenger, various acroleins and aldehydes were coupled with moderate to high yields and diastereomeric excesses. Alkyl aldehydes usually favor syn configuration while aldehydes with functional groups containing