Potassium Phthalimide

• CAT Number: R023778
• CAS Number: 1074-82-4
• Molecular Formula: C₈H₄KNO₂
• Molecular Weight: 185.22
• Purity: ≥95%
• Synonyms: 1H-Isoindole-1,3(2H)-dione Potassium Salt; Phthalimide Potassium Salt; Isoindole-1,3-dione Potassium Salt; N-Potassiophthalimide; Phthalimide Potassium; Phthalimidopotassium; Potassium 2,3-Dihydro-1H-isoindole-1,3-dione; Potassium Isoindoline-1,3-di
• Storage: Store at RT
• IUPAC Name: potassium;isoindol-2-ide-1,3-dione
• InChI: InChI=1S/C8H5NO2.K/c10-7-5-3-1-2-4-6(5)8(11)9-7;/h1-4H,(H,9,10,11);/q;+1/p-1
• InChIKey: FYRHIOVKTDQVFC-UHFFFAOYSA-M
• SMILES: C1=CC=C2C(=C1)C(=O)[N-]C2=O.[K+]

Potassium Phthalimide（Cat No.:R023778）is a white to off-white crystalline solid widely used as a nitrogen source in organic synthesis. It is best known for its role in the Gabriel synthesis, where it serves as a precursor for the selective preparation of primary amines. Its nucleophilic nitrogen center reacts readily with alkyl halides, forming N-alkyl phthalimides that can be hydrolyzed to yield pure amines. Potassium phthalimide is also used in pharmaceutical and agrochemical research as a building block for nitrogen-containing heterocycles. It offers stability, ease of handling, and reliable reactivity.