Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2004, Issue 15, Pages 3240-3243Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200400211
Keywords
allenes; cyclization; nitrogen heterocycles
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Cyclization of alpha-amino allenes in the presence of N-bromo-succinimide afforded pyrrolines in good yields. The products were obtained with high enantiomeric excesses when optically active allenes were used as substrates. The synthesis of a 2,5-dehydroprolinol derivative is also presented. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
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