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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 981816Generated: October 30, 2026

Formic Acid → HCID 20071081, compound

https://huagongshe.com/reaction/981816

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantHCID 20071066HCID 20071066—
CatalystPalladiumHCID 23938—
SolventTriethylamineHCID 8471—
ProductHCID 20071081HCID 20071081—

Reaction Conditions

Temperature80 °C

Reaction Steps

59.5 mg of palladium at a concentration of 10% on charcoal are added to 0.014 mole (2.8 g) of 4-chloro-2-amino-6-methylaminonitrobenzene in 5.3 ml of triethylamine, and 1.16 ml of formic acid are then run in dropwise. A high exothermicity is noted. The reaction mixture is heated to 80° C. for 40 minutes. After dilution of the reaction mixture with ethanol, the catalyst is removed by hot filtration. The filtrate, evaporated under reduced pressure, enables a dry extract to be obtained. After dilution of the dry extract with water, the expected product precipitates. After being filtered off and washed with water, the precipitate is dried under vacuum in the presence of phosphorus pentoxide. After two recrystallizations from isopropanol in order to remove a gum, the product melts at 70° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04992586
Source datasetuspto-grants-1991_02
ORD IDord-17d6ff2e51d34a8e9902539caf952d50
Source noteuspto-grants-1991_02