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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 326776Generated: October 30, 2026

Gamma-Aminobutyric Acid → 4-Phthalimidobutyric acid

https://huagongshe.com/reaction/326776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantGamma-Aminobutyric AcidHCID 119—
ReactantPhthalic AnhydrideHCID 6811—
Product4-Phthalimidobutyric acidHCID 1841188.5%

Reaction Steps

2 g of gamma-aminobutyric acid is reacted with an equimolar amount (2.87 g) of phthalic anhydride by dry melting at 150° C. The reaction product is crystallized from ethanol/water (1/2) so yielding 4 g of gamma-phthalimidobutyric acid with melting point 120°-123° C. and 88% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05270338
Source datasetuspto-grants-1993_12
ORD IDord-684a47a5a1ab44f187bd750d09e195f4
Source noteuspto-grants-1993_12