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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898576Generated: November 1, 2026

Methanol → HCID 57516628, compound

https://huagongshe.com/reaction/1898576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantWaterHCID 962—
ReactantDichloromethaneHCID 6344—
ReactantHCID 57516627HCID 57516627—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57516628HCID 5751662884%

Reaction Steps

1-(3-Bromophenyl)-3,3-dimethyl-pyrrolidine-2,5-dione (10.6 g, 37.7 mmol) was suspended in 200 ml of THF. Borane dimethyl sulfide complex (33 ml of a 10.1 M solution) was added and the reaction was stirred at room temperature for 3 hrs. The reaction was cooled in an ice bath. Methanol (100 ml) was added dropwise, followed by 300 ml of water. This mixture was transferred to a separatory funnel and DCM was added. The organic phase was isolated, washed with brine, filtered through Celite and concentrated. The product was chromatographed using a gradient of 0% to 5% ethyl acetate in hexanes, concentrated, triturated with methanol and filtered to give 8.0 g (84%) of 1-(3-bromophenyl)-3,3-dimethyl-pyrrolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518945B2
Source datasetuspto-grants-2013_08
ORD IDord-a92e53d949584bf589cdcab1dc3b6fc2
Source noteuspto-grants-2013_08