A practical and sustainable photocatalyst-free protocol for photoinduced synthesis
of perfluoroalkylated quinazolin-4(3H)-ones is described starting from quinazolin-4(3H)-ones. A wide range of substituted or fused-quinazolinones is found to be compatible,
providing the corresponding mono- and bis-perfluoroalkylated compounds in moderate
yields. This visible-light-mediated C–H perfluoroalkylation allows an environmentally
friendly and straightforward access to an array of unprecedented functionalized quinazolinone
scaffolds, presenting attractive features for drug discovery. Control experiments
demonstrated that a radical mechanism is involved in the reaction mechanism.
Key words
visible light - perfluoroalkylation - quinazolin-4(3
H)-ones - thiazoloquinazolinone - C–H functionalization - metal-free