Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1993343Generated: October 30, 2026

Hydrogen Bromide → 2-benzyl-5-(3-fluoro-4-hydroxyphenyl)-3-methyl-3H-pyrimidin-4-one

https://huagongshe.com/reaction/1993343

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant2-benzyl-5-(3-fluoro-4-methoxyphenyl)-3-methyl-3H-pyrimidin-4-oneHCID 58828849—
SolventAcetic AcidHCID 176—
Product2-benzyl-5-(3-fluoro-4-hydroxyphenyl)-3-methyl-3H-pyrimidin-4-oneHCID 58828869—

Reaction Conditions

Temperature130 °C

Reaction Steps

HBr (40%, ACS reagent grade) was added to 2-benzyl-5-(3-fluoro-4-methoxyphenyl)-3-methyl-3H-pyrimidin-4-one (Step 4, 9 g, 26 mmol) in HOAc (90 mL). The reaction was heated to 130° C. and monitored by HPLC. After 3 h, the reaction was cooled to RT and the solid was collected by filtration. The solid was washed with H2O and Et2O and dried to afford the title compound as a yellow solid. MS (ESI pos. ion) m/z: 311.1. Calc'd for C18H15FN2O2: 310.11.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07652009B2
Source datasetuspto-grants-2010_01
ORD IDord-6a3154c5a0ad4342a3c983828a3626db
Source noteuspto-grants-2010_01