Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1848127Generated: November 4, 2026

Formic Acid → HCID 86681100, compound

https://huagongshe.com/reaction/1848127

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantAcetic AnhydrideHCID 7918—
Reactant5-Bromo-6-methoxy-3-nitropyridin-2-amineHCID 53408122—
ProductHCID 86681100HCID 8668110094.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of acetic anhydride (15.9 mL, 168.7 mmol) and formic acid (6.4 mL, 168.7 mmol) was heated at 60° C. for 3 h. After cooling to rt, 5-bromo-6-methoxy-3-nitropyridin-2-amine (2.1 g, 8.4 mmol) from Step 1 of this Example was added in portions. The resulting mixture was heated at 60° C. for 1 h, then at 70° C. for 1 h. LCMS analysis showed that the reaction was complete. The volume was condensed under reduced pressure, and the precipitated solid was collected by filtration to give N-(5-bromo-6-methoxy-3-nitropyridin-2-yl)formamide as a light yellow solid (2.2 g, 94%). LCMS (ESI) m/z 276, 278 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952058B2
Source datasetuspto-grants-2015_02
ORD IDord-3526b7931c2e4fba80c4469ea52bcdf0
Source noteuspto-grants-2015_02