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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 330993Generated: October 29, 2026

N-bromobutanimide → 3,4-Dibromo-1H-pyrrolo[2,3-b]pyridine

https://huagongshe.com/reaction/330993

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
Reactant4-Bromo-1H-pyrrolo[2,3-b]pyridineHCID 22273643—
SolventDichloromethaneHCID 6344—
Product3,4-Dibromo-1H-pyrrolo[2,3-b]pyridineHCID 2472956072.3%

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of 4-bromo-1H-pyrrolo[2,3-b]pyridine (1.00 g, 5.08 mmol) and NBS (0.918 g, 5.16 mmol) in DCM (20.0 mL) was stirred at 0° C. for 1.5 hour. The resulting suspension was filtered, washed with DCM, residue collected, dried in a 50° C. oven overnight to afford the title compound (1.014 g). LCMS (A): m/z (M+H)+ 277, C7H4Br2N2 requires 276 (basic).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877742B2
Source datasetuspto-grants-2014_11
ORD IDord-6fdbfeff5fef4ede9cd78247ca27ff8a
Source noteuspto-grants-2014_11