Tetrahedron Asymmetry p. 1989 - 1994 (1995)
Update date:2022-08-16
Topics:
Greck, Christine
Bischoff, Laurent
Genet, Jean Pierre
The enantioselective synthesis of (3S,4S)-4-hydroxy-2,3,4,5-tetrahydropyridazine-3-carboxylic acid 1 is described.The two stereogenic centers in anti relationship are obtained by sequential enantio and chemoselective hydrogenation of β-ketoester in presence of chiral ruthenium catalyst and diastereoselective amination of β-hydroxyester with di t-butylazodicarboxylate.
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