strategy for multi-substituted isoquinoline derivatives has been developed using visible light-promoted vinylisocyanideinsertion with diaryliodonium salts at room temperature. The methodology presented here represents the first example of isoquinoline synthesis via somophilicisocyanideinsertion.
β-Functionalized α,β-unsaturated amino acids were synthesized by an addition-elimination pathway. Reaction of methyl β-bromo-α-formylaminoacrylates (3a-e), which were prepared by the condensation of methyl isocyanoacetate (1) with aldehydes followed by bromination, with thiols gave β-alkylthio-α, β-unsaturated amino acidderivatives (6a-f). The reaction of (3a) with sodium azide resulted in the formation
Amino Acids and Peptides; XLIII<sup>1</sup>. Dehydroamino Acids; XVIII<sup>2</sup>. Synthesis of Dehydroamino Acids and Amino Acids from<i>N</i>-Acyl-2-(dialkyloxyphosphinyl)-glycin Esters; II