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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 44907Generated: October 25, 2026

4-Chloro-1H-pyrrolo[2,3-b]pyridine → 4-(4-bromo-3-methyl-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine

https://huagongshe.com/reaction/44907

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-1H-pyrrolo[2,3-b]pyridineHCID 11389493—
ReactantHCID 178434489HCID 178434489—
Product4-(4-bromo-3-methyl-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridineHCID 1775446587.5%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 4-chloro-1H-pyrrolo[2,3-b]pyridine (0.050 g, 0.00033 mol) and 4-bromo-3-methyl-1H-pyrazole (0.10 g, 0.00066 mol) was heated at 130° C. overnight. The reaction mixture then was subjected to column chromatography (eluting with 5% MeOH/DCM, 0.5% NH4OH, on silica gel) to give 80 mg pale yellow solid which was triturated with MeOH (1.5 mL) to yield the product as a pale yellow solid (44 mg, 44% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541425B2
Source datasetuspto-grants-2013_09
ORD IDord-c28a6041338b440a8499238ce2e3cd91
Source noteuspto-grants-2013_09