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A Piperidine Chiron for the Veratrum Alkaloids

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posted on 2012-05-04, 00:00 authored by Douglass F. Taber, Peter W. DeMatteo
A Veratrum piperidine chiron was prepared over 11 steps (7.9% yield) from (−)-citronellal. Three methods for the installation of the propargylic side chain onto a cyclic enamide are presented.