Stereoselective Synthesis of 2,6-cis- and 2,6-trans-Piperidines through Organocatalytic Aza-Michael Reactions: A Facile Synthesis of (+)-Myrtine and (−)-Epimyrtine
journal contributionposted on 18.02.2011 by Yongcheng Ying, Hyoungsu Kim, Jiyong Hong
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Both 2,6-cis- and 2,6-trans-piperidines were prepared from common substrates through organocatalytic aza-Michael reactions promoted by the gem-disubstituent effect in conjunction with dithiane coupling reactions. The organocatalytic aza-Michael reaction enabled a facile synthesis of (+)-myrtine and (−)-epimyrtine from a common substrate.