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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1375384Generated: October 31, 2026

Water → HCID 23021902, compound

https://huagongshe.com/reaction/1375384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCesium carbonateHCID 10796—
ReactantPyrrolidineHCID 31268—
ReactantMethyl 4-bromo-2-methylbenzoateHCID 22031226—
CatalystBinap, (A+-)-HCID 634876—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 23021902HCID 23021902—

Reaction Steps

2.0 g of methyl 4-bromo-2-methylbenzoate were dissolved in 20 ml of toluene, and 1.08 ml of pyrrolidine, 4.0 g of cesium carbonate, 200 mg of tris(dibenzylideneacetone)-dipalladium (0) and 200 mg of (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl were added thereto, and then the mixture was heated under reflux for 6 hours. The reaction solution was cooled, mixed with water and EtOAc, and extracted. The organic layer was washed with water and brine, and dried over anhydrous sodium sulfate. After evaporating the solvent, the residue was purified by silica gel column chromatography (hexane-EtOAc (25:1)) to obtain 0.784 g of methyl 2-methyl-4-pyrrolidin-1-ylbenzoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07169772B2
Source datasetuspto-grants-2007_01
ORD IDord-ebd5a574e44b4daebc89d3362fe98d84
Source noteuspto-grants-2007_01