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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1909982Generated: October 25, 2026

N-bromobutanimide → HCID 178478408, compound

https://huagongshe.com/reaction/1909982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
ReactantHCID 178418725HCID 178418725—
SolventChloroformHCID 6212—
ProductHCID 178478408HCID 178478408—

Reaction Conditions

Temperature70 °C

Reaction Steps

To 4-chloro-1H-pyrrolo[2,3-d]pyrimidine (5 g, 32.6 mmol) in Chloroform (100 mL) was added NBS (6.08 g, 34.2 mmol), and the reaction mixture was stirred a 70° C. for 3 hours. The reaction was allowed to cool to room temperature, and the mixture was filtered, washing the solid with additional CHCl3 to afford 5-bromo-4-chloro-1H-pyrrolo[2,3-d]pyrimidine as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598156B2
Source datasetuspto-grants-2013_12
ORD IDord-de520ba181b3408fbfd83e65f1c54dbb
Source noteuspto-grants-2013_12