4,5-Dichlorophthalimide (5,6-dichloro-1H-isoindole-1,3(2H)-dione) is suitable as a reactant in the synthesis of 5’-N-(4’’,5’’-dichlorophthaloyl)-3’-azido-2’,3’-dideoxythymidineand 2-amino-4,5-dichlorobenzoic acid.It may be used in the following studies:As a reactant in the synthesis of 4,5-dichloro-1,2-benzenedicarboxamide.As an additive in the Ir-BICP catalyzed asymmetric hydrogenation of 2,3,3-trimethylindolenine to improve enantioselectivity.As a reactant in the synthesis of octachloro-Cu-phthalocyanine.As a reagent in the synthesis of 7-tert-butylthianthrene-2,3-dicarboxylic imide.As a starting material in the synthesis ofN-(3-bromopropyl)-4,5-dichlorophthalimide.As a nucleophilic partner in the phosphine-catalyzed allylic substitution of Morita-Baylis-Hillman acetates to formN-protected β-amino phosphonic acid esters.