Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2421239Generated: October 30, 2026

Pyrrolidine → HCID 59627932, compound

https://huagongshe.com/reaction/2421239

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
ReactantDimethylformamide dimethyl acetalHCID 78373—
Reactant1-Bromo-5-fluoro-2-methyl-3-nitrobenzeneHCID 2773385—
SolventDimethylformamideHCID 6228—
ProductHCID 59627932HCID 59627932—

Reaction Conditions

Temperature110 °C

Reaction Steps

To a solution of 1-bromo-5-fluoro-2-methyl-3-nitrobenzene (5.0 g, 21.37 mmol) in N,N-dimethylformamide (50 mL) was added N,N-dimethylformamide dimethyl acetal (8.58 mL, 64.1 mmol) and pyrrolidine(1.767 mL, 21.37 mmol). The reaction mixture was heated at 110° C. for 4 hours. After cooling to room temperature, the N,N-dimethylformamide was removed by evaporation. The residue was taken up in diethyl ether and water. After separation of the organic layer, the aqueous layer was re-extracted with diethyl ether. The combined organic layers were dried over magnesium sulphate, filtered and concentrated to give a red/brown oil which was used directly in the following reaction without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07956083B2
Source datasetuspto-grants-2011_06
ORD IDord-ba1d3cf91f75493fb2e02562d22772cc
Source noteuspto-grants-2011_06