Table . Optimization of photo-Hunsdiecker reaction. a a 1b and 1,3-diiodo-5,5-dimethylhydantoin (DIH) were added to a 4 mL vial equipped with magnetic stirbar and septum. Solvent was added and the reaction was irradiated using a white CFL bulb at 23 °C and monitored by LC/MS. See Supporting Information for experimental details.