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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2305083Generated: October 29, 2026

Methanol → 3-Bromo-5-methoxypyridine

https://huagongshe.com/reaction/2305083

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium hydrideHCID 24758—
Reactant3,5-DibromopyridineHCID 69369—
SolventDimethylformamideHCID 6228—
Product3-Bromo-5-methoxypyridineHCID 817163—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a suspension of 12 g of 3,5-dibromopyridine and 40 g of 60% NaH in DMF was added 4.05 mL of MeOH, and the reaction mixture was stirred for 4 hours at room temperature and 1 hour at 60° C. The DMF was removed under reduced pressure, and the residue was taken directly to the next step. MS (CI/NH3) m/z 188/190 (M+H)+, 205/207 (M+NH4)+. 1H NMR (CDCl3, 300 MHz) δ: 8.32 (d, J=1.8 Hz, 1H), 8.27 (d, J=2.6 Hz, 1H), 7.42 (dd, J=1.8, 2.6 Hz, 1H), 3.88 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06437138B1
Source datasetuspto-grants-2002_08
ORD IDord-f28b5e402e8e48a8933aa694d7cc9cd6
Source noteuspto-grants-2002_08