Stereodivergent Aminocatalytic Synthesis of Z- and E-Trisubstituted Double Bonds from Alkynals

A highly diastereoselective synthesis of trisubstituted Z‐ or E‐enals, which are important intermediates in organic synthesis, as well as being present in natural products, is described using different alkynals and nucleophiles as starting materials. Diastereocontrol is mainly governed by the approp...

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