On April 7^st , for the invitation of Prof. Huang  , Prof. David Nicewicz ,from University of North Carolina at Chapel Hill , visted our school and brought us an excellent report “New Avenues in Synthesis via Organic Photoredox Catalysis” in Room E-104. His talk mainly focus on organic photoredox catalysis for the anti-Markovnikov  hydrofunctionalization reactions. All the teachers and students benefited a lot from his report.