Comparative photochemical flow synthesis of ketenimines via Hg-lamp and UV-C LED irradiation

Abstract

The use of novel UV-C LEDs emitting monochromatic light at 265 nm is reported for the continuous flow synthesis of ketenimines from isoxazoles. The resulting flow process is compared to the use of a traditional Hg-lamp showing that substantial improvements in reaction performance and efficiency are obtained demonstrating the value of these high-power UV-C LED modules (up to 40 W of input power).