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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1619211Generated: November 1, 2026

1,4-Dibromobenzene → HCID 57420154, compound

https://huagongshe.com/reaction/1619211

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DibromobenzeneHCID 7804—
Reactant1-Pyrimidin-2-yl-piperidin-4-oneHCID 1478856—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57420154HCID 5742015493%

Reaction Steps

To a solution of 1,4-dibromobenzene (213.3 mg, 0.904 mmol) in THF (4 ml), was added n-BuLi (2.5 M in hexanes, 0.362 ml, 0.904 mmol) at −78° C. After being stirred for 30 minutes at the same temperature, a solution of 1-pyrimidin-2-yl-piperidin-4-one (80 mg, 0.452 mmol) in THF (3 ml) was added. The mixture was allowed to warm to room temperature and stirred for 1 hour. The reaction was quenched with addition of water (10 ml) and EtOAc (50 ml). The organic layer was washed with brine (5 ml), dried (MgSO4), filtered, and concentrated under reduced pressure to furnish the crude product. This material was purified by column chromatography (40% EtOAc/hexanes) to give 4-(4-Bromo-phenyl)-1-pyrimidin-2-yl-piperidin-4-ol as a colorless oil (140 mg, 93%): 1H NMR (CDCl3, 400 MHz) δ 8.33 (d, J=6.4 Hz, 2H), 7.47 (d, J=12.0 Hz, 2H), 7.41 (d, J=12.0 Hz, 2H), 6.49 (t, J=6.4 Hz, 1H), 4.72 (m, 2H), 3.40 (m, 2H), 2.05 (m, 2H), 1.78 (m, 2H); MS calc'd for C15H17BrN3O [M+H]+: 335; Found: 335.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08772291B2
Source datasetuspto-grants-2014_07
ORD IDord-ef881fcb6d9f492c877325aeac9beb88
Source noteuspto-grants-2014_07