Photocatalytic oxidative cyclization of α-halo hydrazones with tetrahydroisoquinoline for construction of isoquino[3,4-a][1,2,4]-triazines

A mild and efficient method for the photocatalytic oxidative cyclization of α-halo hydrazones with tetrahydroisoquinoline has been described. This strategy provides a potential protocol for the construction of functionalized isoquino[3,4-a][1,2,4]-triazines in moderate to good yields.