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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 250347Generated: October 26, 2026

4-Hydroxyphthalic acid → (5-Hydroxy-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-acetic acid ethyl ester

https://huagongshe.com/reaction/250347

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Hydroxyphthalic acidHCID 11881—
ReactantGlycine ethyl ester, hydrochlorideHCID 2723640—
Product(5-Hydroxy-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-acetic acid ethyl esterHCID 66712563—

Reaction Steps

Prepared in analogy to example D-100 c) from 4-hydroxy-phthalic acid and glycine ethyl ester HCl salt. 1H NMR (200 MHz, DMSO-d6) δ 11.0 (br s, 1H), 7.74 (d, J=7.8 Hz, 1H), 7.17 (m, 2H), 4.35 (s, 2H), 4.13 (q, J=7.0 Hz, 2H), 1.20 (t, J=7.0 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863292B2
Source datasetuspto-grants-2011_01
ORD IDord-51f13adc37e7455db7311dca0d5ca9ac
Source noteuspto-grants-2011_01