Synthesis 2002(1): 0094-0098
DOI: 10.1055/s-2002-19295
PAPER
© Georg Thieme Verlag Stuttgart · New York

An Efficient Synthesis of (2S,6S)- and meso-Diaminopimelic Acids via Asymmetric Hydrogenation

Wei Wang, Chiyi Xiong, Jianqing Yang, Victor J. Hruby*
Department of Chemistry, University of Arizona, Tucson, AZ 85721, USA
Fax: +1(520)6218407; e-Mail: hruby@u.arizona.edu;
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Publikationsverlauf

Received 5 June 2001
Publikationsdatum:
04. August 2004 (online)

Abstract

An efficient synthesis of the title compounds 1 and 2 has been successfully developed. The key step is the asymmetric hydrogenation of dehydroamino acid 7 using [Rh(I)(COD)-(S,S) or -(R,R)-Et-DuPHOS)]+OTf- to produce the optically active, protected amino acid derivatives in high ee (>95%). The approach also can be used for the synthesis of other isomers and analogues.