Diastereoselective synthesis of enantiopure γ-amino-β-hydroxy acids by Reformatsky reaction of chiral α-dibenzylamino aldehydes
作者:José M Andrés、Rafael Pedrosa、Alberto Pérez、Alfonso Pérez-Encabo
DOI:10.1016/s0040-4020(01)00804-3
日期:2001.10
N,N-Dibenzylamino aldehydes 1 react with Reformatsky's reagent leading to anti-gamma -dibenzylamino-beta -hydroxy esters 2 as the major stereoisomers. Treatment of 2 with TFA followed by hydrogenolysis on Pearlman's catalyst yields the corresponding-gamma -amino-beta -hydroxy acids 10. Contrarily, some N-butoxycarbonyl (Boc) amino aldehydes lead to syn-gamma -tert-butoxycarbonylamino-beta -hydroxy esters as the major product. (C) 2001 Elsevier Science Ltd. All rights reserved.
Halling, Karen; Torssell, Kurt B. G.; Hazell, Rita G., Acta Chemica Scandinavica, 1991, vol. 45, # 7, p. 736 - 741
作者:Halling, Karen、Torssell, Kurt B. G.、Hazell, Rita G.