Facile Syntheses of Enantiopure 3-Hydroxypiperidine Derivatives and 3-Hydroxypipecolic Acids
journal contributionposted on 05.03.2010 by Wen-Hua Chiou, Gau-Hong Lin, Chih-Wei Liang
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Facile syntheses of enantiopure trans- and cis-3-hydroxypiperidine derivatives and 3-hydroxypipecolic acids are reported, featuring Rh-catalyzed cyclohydrocarbonylation through common intermediates. A diaxial conformation in a 2,3-disubstituted N-Boc-piperidinyl structure is revealed by an X-ray crystallographic analysis.