Photocatalytic One-Step Syntheses of Cyclic Imino Acids by Aqueous Semiconductor Suspensions

Article abstract of DOI:10.1021/jo00308a005

Optically active cyclic imino acids, pipecolinic acid and proline, are readily obtained from α,ω-diamino carboxylic acids and their N_ω-substituted derivatives by the photoirradiation of aqueous suspensions of TiO2 or CdS loaded with platinum oxides under Ar at room temperature.