Asymmetric rearrangement of N-Boc 7-azanorbornene oxide: use of aryllithiums for enantioselective deprotonation
作者:David M. Hodgson、Christopher R. Maxwell、Ian R. Matthews
DOI:10.1016/s0957-4166(99)00168-8
日期:1999.5
The enantioselective α-deprotonation-rearrangement of N-Boc 7-azanorbornene oxide 1 using aryllithiums in the presence of (−)-sparteine 4 or bisoxazolines 5a–c to give azanortricyclanol 2 in up to 87% ee is described.
Organolithium-induced enantioselective alkylative double ring-opening of epoxides: synthesis of enantioenriched unsaturated amino alcohols
作者:David M. Hodgson、Christopher R. Maxwell、Timothy J. Miles、Edyta Paruch、Ian R. Matthews、Jason Witherington
DOI:10.1016/j.tet.2004.02.055
日期:2004.4
The use of (-)-sparteine as an external chiral ligand in enantioselective organolithium-induced alkylative double ring-opening of dihydropyrrole epoxides and 7-azanorbornene-type epoxides gives unsaturated acyclic amino alcohols, and amino cyclohexenols in up to 87% ee. (C) 2004 Elsevier Ltd. All rights reserved.
Enantioselective Alkylative Double Ring Opening of Epoxides: Synthesis of Enantioenriched Unsaturated Diols and Amino Alcohols
作者:David M. Hodgson、Christopher R. Maxwell、Timothy J. Miles、Edyta Paruch、Matthew A. H. Stent、Ian R. Matthews、Francis X. Wilson、Jason Witherington