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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1044829Generated: October 31, 2026

N-Hydroxyphthalimide → HCID 67118409, compound

https://huagongshe.com/reaction/1044829

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-HydroxyphthalimideHCID 10665—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantHCID 43394335HCID 43394335—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67118409HCID 6711840941.5%

Reaction Steps

Diethyl azodicarboxylate (40% in toluene, 1.0 ml, 2.2 mmol) was added to the mixture of 1-(4-(trifluoromethoxy)phenylsulfonyl)piperidin-4-ol (651 mg, 2.0 mmol), N-hydroxyphthalimide (359 mg, 2.2 mmol) and triphenylphosphine (577 mg, 2.2 mmol) in THF (8 ml) at 0° C. and stirred at room temperature for 2 days. The solvent was evaporated under reduced pressure and the residue was purified by column chromatography on silica (EtOAc/Hexanes 10/90-50/50) to give 2-(1-(4-(trifluoromethoxy)phenylsulfonyl)piperidin-4-yloxy)isoindoline-1,3-dione (390 mg, 40%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08563732B2
Source datasetuspto-grants-2013_10
ORD IDord-12957dfd2af340d6b1f0ab09c35041b0
Source noteuspto-grants-2013_10