Visible-light-enabled cascade cross-dehydrogenative-coupling/cyclization to construct α-chromone substituted α-amino acid derivatives.

Autor: Zhu, Zhi-Qiang, Hu, Jia-Yu, Xie, Zong-Bo, Le, Zhang-Gao
Předmět:
Zdroj: Chemical Communications; 1/14/2024, Vol. 60 Issue 1, p106-109, 4p
Abstrakt: Organophotocatalytic cascade cross-dehydrogenative-coupling/cyclization reaction of o-hydroxyarylenaminones with α-amino acid derivatives for the construction of α-chromone substituted α-amino acid derivatives was developed. Various N-arylglycine esters, amides and dipeptides underwent the cascade cyclization reaction well with o-hydroxyarylenaminones to afford the corresponding 3-aminoalkyl chromones in good to excellent yields. This approach consists of visible-light-promoted oxidation of α-amino acid derivatives, the Mannich reaction, and intramolecular nucleophilic cyclization under acidic conditions, and features a wide reaction scope, a simple operation and mild reaction conditions, which may have the potential to be used for the synthesis of bioactive molecules. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index