Bisulfite adducts are not compatible with n-BuLi, the Li will add sequentially to the three oxygens on the SO3 group, wasting the precious reagent.
A better suggestion might be to dehalogenate using Superhydride (LiEt3BH) or maybe BER - see Post 241350 (https://www.thevespiary.org/talk/index.php?topic=6818.msg24135000#msg24135000)
(foxy2: "Aromatic Dehalogenation [ BER - Ni(OAc)2 ]", Chemistry Discourse)?