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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 34083Generated: October 29, 2026

Sodium Thiosulfate → HCID 178419485, compound

https://huagongshe.com/reaction/34083

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ThiosulfateHCID 24477—
ReactantN-bromobutanimideHCID 67184—
Reactant1H-Pyrazolo[4,3-c]pyridineHCID 19930500—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 178419485HCID 17841948573.3%

Reaction Steps

To a solution of 3.85 g of 1H-pyrazolo[4,3-c]pyridine in 50 mL of N,N-dimethylformamide was added 6.04 g of N-bromosuccinimide at room temperature and stirred at this temperature for 2 hours. Adding 10 mL of 10% sodium thiosulfate aqueous solution, the solution was diluted with ethyl acetate. The organic layer was washed successively with saturated aqueous ammonium chloride and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated, to afford 4.69 g of the title compound as pale red-brown crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429609B2
Source datasetuspto-grants-2008_09
ORD IDord-c33490b896594d5d9cb0c618ffaf0a57
Source noteuspto-grants-2008_09