A novel highly selective chiral auxiliary for the asymmetric synthesis of L-and D-α-amino acid derivatives via a multicomponent Ugi reaction
A Basso, L Banfi, R Riva, G Guanti
Index: Sato, Fumie; Akiyama, Toshio; Iida, Katsumi; Sato, Masao Synthesis, 1982 , # 12 p. 1025 - 1026
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Citation Number: 115
Abstract
... β-amino acid 8 in both enantiomeric forms 7 and its use as a novel chiral auxiliary in the synthesis, through a ... in dioxane proceeded smoothly and furnished (−)-N-benzylvaline benzylamide (−)-11a, which by hydrogenolysis with Pd black and formic acid 12 provided (−)-valine ...
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