Catalysis in Capillaries by Pd Thin Films Using Microwave‐Assisted Continuous‐Flow Organic Synthesis (MACOS)

Finally …︁ metal in a microwave! Thin films of Pd black deposited onto the inner surface of microcapillaries are efficient for metal-catalyzed transformations under flow conditions including the Suzuki–Miyama and Heck couplings. The reaction mixture is flowed through these miniature capillaries while being microwaved, and conversion times are on the order of seconds.