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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 557939Generated: October 29, 2026

Dimethylformamide → methyl 3-[1-(phenoxyacetyl)-2,3-dihydro-1H-pyrrol-3-yl]benzoate

https://huagongshe.com/reaction/557939

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantEthyl AcetateHCID 8857—
ReactantMethyl 3-bromobenzoateHCID 12070—
ReactantPotassium AcetateHCID 517044—
ReactantBenzyl 3-pyrroline-1-carboxylateHCID 643471—
CatalystTetrabutylammonium BromideHCID 74236—
Catalystpalladium(II) acetateHCID 167845—
SolventWaterHCID 962—
Productmethyl 3-[1-(phenoxyacetyl)-2,3-dihydro-1H-pyrrol-3-yl]benzoateHCID 66662462—

Reaction Steps

A solution of benzyl 2,5-dihydro-1H-pyrrole-1-carboxylate (0.626 mL, 0.00349 mol), methyl 3-bromo-benzoate (300 mg, 0.001 mol), palladium(II) diacetate (14 mg, 0.000063 mol), potassium acetate (356 mg, 0.00363 mol), and tetra-N-butylammonium bromide (4.50×10−2 mg, 0.00140 mol) in N,N-dimethylformamide (5 mL, 0.06 mol) was stirred under nitrogen at 40° C. for 4 days. The reaction mixture was diluted with AcOEt and water. The organic layer was separated and the aqueous layer was extracted with AcOEt. The combined organic layer was washed with brine, dried with MgSO4, and concentrated to afford the crude product. The crude product was purified by flash chromatography, eluting with 30% AcOEt in hexanes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08058288B2
Source datasetuspto-grants-2011_11
ORD IDord-c52e328b0199465ab305818592923efc
Source noteuspto-grants-2011_11