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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677553Generated: October 29, 2026

Methanol → HCID 57516628, compound

https://huagongshe.com/reaction/1677553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantWaterHCID 962—
ReactantBoraneHCID 6331—
ReactantHCID 57516627HCID 57516627—
SolventDimethyl SulfideHCID 1068—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57516628HCID 5751662875.2%

Reaction Steps

1-(3-Bromo-phenyl)-3,3-dimethyl-pyrrolidine-2,5-dione (2.5 g, 8.9 mmol) was suspended in 45 ml of THF. Borane (7.9 ml of a 10.1M solution in methyl sulfide) was added and the reaction was stirred at room temperature for 3 hours. The reaction was cooled to 0° C. in an ice bath and 20 ml of methanol was added dropwise, then 60 ml of water. The mixture was transferred to a separatory funnel and methylene chloride was added. The organic phase was washed with water and brine, filtered through celite and concentrated. The crude product was purified by flash chromatography using a gradient of 0% to 5% ethyl acetate in hexanes to give 1.7 g (75%) of 1-(3-bromo-phenyl)-3,3-dimethyl-pyrrolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008298B2
Source datasetuspto-grants-2011_08
ORD IDord-c745c671dba54edca48666ac23551d80
Source noteuspto-grants-2011_08