Stereoselective Formal Hydroamidation of Si-Substituted Arylacetylenes with DIBAL-H and Isocyanates: Synthesis of (<i>E</i>)- and (<i>Z</i>)-α-Silyl-α,β-unsaturated Amides
stereoselective method for the synthesis of (E)- and (Z)-α-silyl-α,β-unsaturatedamides and its synthetic applications are presented herein. The solvent-controlled hydroaluminations of Si-substituted alkynes with DIBAL-H generate diastereomerically enriched alkenylaluminum reagents that are directly reacted with isocyanates at ambient temperature to afford α-silyl-α,β-unsaturatedamides in high yields with retained