We then proceeded to assess CzBN, tDABNA and DtBuCzB as photocatalysts in the same reaction, due to their poor solubility in MeCN (and most other organic solvents), the subsequent studies were conducted in THF. Unfortunately, this solvent was problematic for this reaction as there was no evidence of 1 with these PCs nor with DABNA-1, while 2 was formed in yields of 18, 17, 26 and 21%, respectively, using DABNA-1, tDABNA, CzBN and DtBuCzB. This outcome likely is due to the more easily abstractable proton from THF than from MeCN leading to a much faster rate of a hydrogen atom transfer (HAT) from the solvent to the aryl radical than trapping with TMB. Of the four PCs, CzBN produced the highest yield of dehalogenated product.