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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 364216Generated: October 25, 2026

Beta-Alanine → 3-Phthalimidopropionic acid

https://huagongshe.com/reaction/364216

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
ReactantPhthalic AnhydrideHCID 6811—
SolventWaterHCID 962—
Product3-Phthalimidopropionic acidHCID 76859—

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of phthalic anhydride (500 g) and β-alanine (267 g) was fused by heating at 200° C. for 15 minutes, and poured into water (1500 ml). The formed precipitate was collected by filtration, and recrystallized from ethanol to give phthaloyl-β-alanine (hereinafter referred to as pht-βAla), yield 537 g, 81.6%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04604451
Source datasetuspto-grants-1986_08
ORD IDord-af718b79d47e4c7ba2a39222c044e247
Source noteuspto-grants-1986_08