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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1254940Generated: November 1, 2026

Sulfuric Acid → HCID 68997976, compound

https://huagongshe.com/reaction/1254940

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant5-fluoro-1,3-dihydro-2H-indol-2-oneHCID 3731012—
ReactantLiHMDS tetrahydrofuranHCID 23714775—
ReactantHCID 58586311HCID 58586311—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68997976HCID 6899797659%

Reaction Steps

To a stirred solution of 5-fluorooxindole (218 mg, 1.44 mmol) in anhydrous THF (10 ml) under nitrogen was added 1.0M LiHMDS/THF solution (2.9 ml, 2.9 mmol). After the mixture was stirred at room temperature for 10 minutes, 3-(1-Oxo-1,3-dihydro-isobenzofuran-5-yl)-propionic acid (100 mg, 0.48 mmol) was added. After the mixture was stirred at room temperature for 2 hours, 1 M sulfuric acid solution (10 ml) was added. The mixture was heated at 60° C. for 2 hours, and then poured into 150 ml of water. The resulting solid was filtered, rinsed with water, dried in vacuo to give the title compound as a yellow solid (96 mg, 59%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455656B2
Source datasetuspto-grants-2013_06
ORD IDord-be33d0eefb07496a96ef3cd8d40ed5c9
Source noteuspto-grants-2013_06