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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1269912Generated: November 1, 2026

Potassium bisulfate → HCID 69433113, compound

https://huagongshe.com/reaction/1269912

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium bisulfateHCID 516920—
ReactantSodium MethoxideHCID 10942334—
ReactantHCID 69430112HCID 69430112—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
ProductHCID 69433113HCID 6943311385%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a suspension of trans-3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-4,4-dimethylcyclohexyl 4-nitrobenzoate (420 mg, 1.00 mmol) in a mixture of methanol (0.10 ml) and tetrahydrofuran (10 ml) was added 28%-sodium methoxide (0.24 ml, 1.00 mmol) at 3° C., and stirred at 0° C. for 30 minutes and then at room temperature for 35 minutes. The reaction solution was adjusted to pH 4 with a 0.5M-aqueous potassium hydrogensulfate solution and then distilled under reduced pressure to remove the solvent. The residue was added to water and extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate and distilled under reduced pressure to remove the solvent, and the resulting residue was purified by a silica gel column chromatography (hexane/ethyl acetate=2/1) to obtain trans-2-(5-hydroxy-2,2-dimethylcyclohexyl)-1H-isoindole-1,3(2H)-dione (231 mg, 85%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07199147B2
Source datasetuspto-grants-2007_04
ORD IDord-b51cf855968f4fcb875089faccdd0f14
Source noteuspto-grants-2007_04