Tetrahedron Letters p. 3573 - 3576 (1993)
Update date:2022-08-03
Topics:
Oishi, Tohru
Iida, Kyo-Ichiro
Hirama, Masahiro
Highly diastereoselective dihydroxylation of 4,5-dihydroxy-2-pentenoate with osmium tetroxide using chiral N,N′-dialkyl-2,2′-bipyrrolidine ligands (1) is described. Either syn or anti selection was achieved for acetate (2d) and methyl ether (2e) by employing the enantiomeric ligands.
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