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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79524Generated: October 29, 2026

Water → 1H-Pyrrolo[2,3-B]pyridine, 5-bromo-4-chloro-1-(phenylsulfonyl)-

https://huagongshe.com/reaction/79524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantSodium hydrideHCID 24758—
Reactant5-Bromo-4-chloro-1H-pyrrolo(2,3-b)pyridineHCID 45789788—
SolventDimethylformamideHCID 6228—
Product1H-Pyrrolo[2,3-B]pyridine, 5-bromo-4-chloro-1-(phenylsulfonyl)-HCID 4975888599.7%

Reaction Steps

5-Bromo-4-chloro-1H-pyrrolo[2,3-b]pyridine (0.50 g, 2.160 mmol) was placed in DMF (5 mL) at 0° C. NaH (0.10 g, 2.59 mmol) was then added, and the reaction was stirred for 20 minutes. Benzenesulfonyl chloride (0.304 mL, 2.38 mmol) was then added, and the reaction was stirred for 30 minutes at 0° C. Water (50 mL) was then added. The precipitate was filtered, washed with water, washed with ether, and dried to give 5-bromo-4-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (0.8 g, 99.6% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841304B2
Source datasetuspto-grants-2014_09
ORD IDord-f2d475dee1154b489142c0efb993a9d0
Source noteuspto-grants-2014_09