Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 408393Generated: October 30, 2026

Nitric Acid → 5-ethoxy-4-fluoro-3-nitro-1H-pyrrolo[2,3-b]pyridine

https://huagongshe.com/reaction/408393

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantHCID 60205637HCID 60205637—
Product5-ethoxy-4-fluoro-3-nitro-1H-pyrrolo[2,3-b]pyridineHCID 6020563878%

Reaction Conditions

Temperature0 °C

Reaction Steps

Cold (about 0 to about 5° C.) fuming nitric acid (10 mL) was added to 5-ethoxy-4-fluoro-1H-pyrrolo[2,3-b]pyridine (340 mg, 0.944 mmol). The reaction was stirred at 0° C. for 15 minutes and then ice was added. The resulting solid was filtered and dried to yield 5-ethoxy-4-fluoro-3-nitro-1H-pyrrolo[2,3-b]pyridine (165 mg, 78% yield) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08758830B2
Source datasetuspto-grants-2014_06
ORD IDord-d251bb3410194706b13e818ef0ee16d3
Source noteuspto-grants-2014_06