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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905957Generated: November 1, 2026

Phthalic Anhydride → HCID 67385713, compound

https://huagongshe.com/reaction/905957

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantTriethylamineHCID 8471—
ReactantHCID 59401601HCID 59401601—
SolventTolueneHCID 1140—
ProductHCID 67385713HCID 6738571373.6%

Reaction Steps

Racemic trans 3-amino-cyclohexyl-methanol (0.65 g, 3.925 mmol) was taken up in toluene (25 mL) and triethylamine (1.6 mL, 11.5 mmol). Phthalic anhydride (0.581 g, 3.925 mmol) was added and the resulting mixture was stirred at reflux overnight. The reaction mixture was allowed to cool to RT before being washed with H2O. The aqueous layer was extracted with EtOAc. The combined organic layers were washed with brine, dried (Na2SO4), filtered, and evaporated. The remaining solid was purified by SiO2 chromatography (40 g SiO2, hexanes/EtOAc 0 to 40%) to give 0.749 g of racemic trans-2-(3-hydroxymethyl-cyclohexyl)-isoindole-1,3-dione as a white solid (73% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012974B2
Source datasetuspto-grants-2011_09
ORD IDord-de3f51c84720471d80f1d183be8826dd
Source noteuspto-grants-2011_09