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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1729400Generated: October 25, 2026

5-Bromo-4-methylpyridine-2,3-diamine → 6-Bromo-2-butyl-7-methylimidazo[4,5-b]pyridine

https://huagongshe.com/reaction/1729400

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-4-methylpyridine-2,3-diamineHCID 10125141—
Reactant2-butyl-1H-imidazo[4,5-b]pyridineHCID 12467710—
Product6-Bromo-2-butyl-7-methylimidazo[4,5-b]pyridineHCID 21464181—

Reaction Steps

The title compound was prepared according to the procedure described for the preparation of 2-butylimidazo[4,5-b]pyridine starting with 5-bromo-2,3-diamino-4-picoline. Yield: 2.54 g (95%) of an amorphous solid: 1H NMR (250 MHz, CDCl3) δ 8.45 (s 1H), 3.05 (t, 2H, J=7 Hz), 2.73 (s, 3H), 2.02-1.87 (m, 2H), 1.61-1.45 (m, 2H), 1.02 (t, 3H, J=7 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05332744
Source datasetuspto-grants-1994_07
ORD IDord-4b7e69716dc0487a92122d9fef7be079
Source noteuspto-grants-1994_07