Synthesis and characterization of chiral 1,2-diamines from 5-oxo-pyrrolidine-(S)-2-carboxylic acid
摘要:
Unsymmetrical chiral secondary vicinal diamines were synthesized by applying a modified three-step reaction. The key step in this sequence is a primary amine mediated ring opening reaction of a diastereomeric oxazolidinone derivative. A possible mechanism for this step is described. (c) 2007 Elsevier Ltd. All rights reserved.
Chiral diamides as efficient catalytic precursors for the borane-mediated asymmetric reduction of prochiral ketones
摘要:
Chiral diamides [(2S)-5-oxo-2-(arylamino)carbonylpyrrolidines] derived from the abundantly available (S)-glutamic/(S)-pyroglutamic acids were successfully utilized as effective chiral catalytic precursors in the borane-mediated asymmetric reduction of prochiral ketones in refluxing toluene, to provide the corresponding secondary alcohols with up to 91% enantiomeric purities. (c) 2007 Elsevier Ltd. All rights reserved.
Investigation of 2-oxopyrrolidine 5-carboxylic acid amides derivatives as potential anti-tubercular agents based on the similarity screening results from molecular fingerprints and swiss similarity
作者:Nagasree, K. P.、Umarani, W. A.、Sony, K. P. K.、Kumar, K. S.、Murali Krishna Kumar, M.
DOI:10.56042/ijc.v62i1.70391
日期:——
Chiral diamides as efficient catalytic precursors for the borane-mediated asymmetric reduction of prochiral ketones
Chiral diamides [(2S)-5-oxo-2-(arylamino)carbonylpyrrolidines] derived from the abundantly available (S)-glutamic/(S)-pyroglutamic acids were successfully utilized as effective chiral catalytic precursors in the borane-mediated asymmetric reduction of prochiral ketones in refluxing toluene, to provide the corresponding secondary alcohols with up to 91% enantiomeric purities. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis and characterization of chiral 1,2-diamines from 5-oxo-pyrrolidine-(S)-2-carboxylic acid
作者:Uwe Köhn、Andrea Schramm、Florian Kloß、Helmar Görls、Evelyn Arnold、Ernst Anders
DOI:10.1016/j.tetasy.2007.07.012
日期:2007.7
Unsymmetrical chiral secondary vicinal diamines were synthesized by applying a modified three-step reaction. The key step in this sequence is a primary amine mediated ring opening reaction of a diastereomeric oxazolidinone derivative. A possible mechanism for this step is described. (c) 2007 Elsevier Ltd. All rights reserved.