Catalytic Asymmetric Direct Henry Reaction of Ynals: Short Syntheses of (2<i>S</i>,3<i>R</i>)‐(+)‐Xestoaminol C and (−)‐Codonopsinines

Abstract

Triple for all: Various optically active anti-β-nitro propargylic alcohols are synthesized by the catalytic stereoselective addition of nitroalkanes to ynals (the direct Henry reaction of ynals). The utilization of the rich chemistry of carbon–carbon triple bond allows rapid access to three natural products. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.