Asymmetric Synthesis of β‐Alkynyl Aldehydes by Rhodium‐Catalyzed Conjugate Alkynylation

To the point: The rhodium-catalyzed asymmetric conjugate alkynylation of α,β-unsaturated aldehydes with triisopropylsilyl acetylene proceeded efficiently in methanol to give the β-alkynyl aldehydes in high yields with high enantioselectivity (see Scheme). 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.