Gabriel phthalimide synthesis (primary amines) (Phthalimide anion alkylates then releases 1° aliphatic amine (excellent for 1° amines))

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Phthalimide anion alkylates then releases 1° aliphatic amine (excellent for 1° amines)

What each symbol means

SymbolWhat it stands for
R-XTypically primary alkyl halide
HydrazineIng–Manske deprotection (common pathway)

When to use this

Two-step alkylation + cleavage; avoids polyalkylation of ammonia; works best for primary alkyl halides (SN2).