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The steps involved in the Gabriel synthesis of 3-amino-2-methylpentane. In the first step Gabriel's synthesis phthalimide converted into potassium phthalimide by treatment with JOH as follows: This pottassium phthalimide on heat with 3-iodo-2-methylpentane gives N-2-methylpentanyl phthalimide, which on hrdrolyssis with 20% HCl gives primary amine-3--amino-2-methylpentane as follows:
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