A. Avenoza et al., ASYMMETRIC-SYNTHESIS OF MESO-2,4-DIAMINOGLUTARIC AND (2R,4R)-2,4-DIAMINOGLUTARIC ACIDS, Tetrahedron : asymmetry, 8(6), 1997, pp. 863-871
In order to synthesize meso- and (2R,4R)-2,4-diaminoglutaric acids, a
synthetic route has been developed starting from Garner's aldehyde and
where the key steps are the asymmetric hydrogenations of (E)- and ido
)-2'-(methoxycarbonyl)ethenyl]-1,3-oxazolidine, under heterogeneous co
nditions, followed by oxidation and further hydrolysis. A model is pro
posed to explain the stereochemical outcome of the asymmetric hydrogen
ation. (C) 1997 Elsevier Science Ltd.