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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1667527Generated: October 29, 2026

2-Bromobenzonitrile → HCID 67416808, compound

https://huagongshe.com/reaction/1667527

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-BromobenzonitrileHCID 16272—
ReactantBinap, (A+-)-HCID 634876—
Reactant2-Methylpiperazine, (S)-HCID 2734219—
ReactantSodium t-butoxideHCID 23676156—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventEthyl AcetateHCID 8857—
SolventDimethylacetamideHCID 31374—
ProductHCID 67416808HCID 6741680848.8%

Reaction Steps

A mixture 2-bromobenzonitrile (1.0 g, 5.494 mmol), (S)-(+)-2-methylpiperazine (0.60 g, 5.99 mmol), Pd2(dba)3 (0.503 g, 0.549 mmol), rac-BINAP (1.026 g, 1.648 mmol) and NaOtBu (2.11 g, 21.976 mmol) in DMA (27 mL) was heated at 80° C. for 2.5 h. The mixture was allowed to cool, diluted with EtOAc and washed with water. The organic layer was washed with sat.aq. NaHCO3, brine and dried (Na2SO4). Chromatography (EtOAc/MeOH) afforded 2-((R)-3-methyl-piperazin-1-yl)-benzonitrile (540 mg) as a white solid. 1H (400 MHz, d6-DMSO) δ: ppm; m/z (M+1) 202.21.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044041B2
Source datasetuspto-grants-2011_10
ORD IDord-f6cff52468254721b2b64d6bf34709b7
Source noteuspto-grants-2011_10