Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 220218Generated: October 30, 2026

Hydrochloric Acid → HCID 57418753, compound

https://huagongshe.com/reaction/220218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant2-(1-acetyl-1H-indazol-5-yloxy)-5-fluorobenzonitrileHCID 57552284—
SolventMethanolHCID 887—
ProductHCID 57418753HCID 5741875391.2%

Reaction Conditions

Temperature70 °C

Reaction Steps

2-(1-Acetyl-1H-indazol-5-yloxy)-5-fluorobenzonitrile (369.4 mL, 221.7 mmol) in 370 mL MeOH was treated with 1.0 N HCl (243.8 mL, 243.8 mmol) at ambient temperature. The brown suspension was warmed to 70° C. for 28 hours and then cooled to 0° C. Sodium hydroxide (254.9 mL, 254.9 mmol) was added, followed by water (400 mL). The reaction was stirred at 0° C. for 15 minutes and then filtered. The solids were washed with water (1.5 and dried under high vacuum at 40° C. for 72 hours to provide 51.2 g of the desired product as a tan solid (91% yield for steps 2 and 3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08202899B2
Source datasetuspto-grants-2012_06
ORD IDord-fdfe3b45dcf14d04a9f954999320dbad
Source noteuspto-grants-2012_06