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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1159629Generated: October 26, 2026

4-Chlorophthalic anhydride → 4-(5-Chloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-hydroxy-2,2-dimethyl-chroman-6-carbonitrile

https://huagongshe.com/reaction/1159629

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chlorophthalic anhydrideHCID 67044—
Reactant(3S,4R)-4-amino-3-hydroxy-2,2-dimethyl-chroman-6-carbonitrileHCID 10943936—
Product4-(5-Chloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-hydroxy-2,2-dimethyl-chroman-6-carbonitrileHCID 66700058—

Reaction Steps

Following the procedure in Example 89, using (3S,4R)-4-amino-3-hydroxy-2,2-dimethyl-chroman-6-carbonitrile and 5-chloro-isobenzofuran-1,3-dione as starting materials, the title compound was prepared as a pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07812183B2
Source datasetuspto-grants-2010_10
ORD IDord-e424b0c9b4784373bb8e96bf493329e0
Source noteuspto-grants-2010_10