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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2180256Generated: October 30, 2026

Ethanol → HCID 10946430, compound

https://huagongshe.com/reaction/2180256

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Amino-3-bromopyridineHCID 26095—
ReactantHCID 178457678HCID 178457678—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
ProductHCID 10946430HCID 10946430—

Reaction Conditions

Temperature80 °C

Reaction Steps

The bromopyridine 1 (1.4 g, 8.1 mmol), boronic acid 2 (2.0 g, 8.9 mmol) and potassium carbonate (2.2 g, 15.9 mmol) were dissolved in 80 mL toluene, 8 ml EtOH and 8 mL H2O. This mixture was evacuated and refilled with nitrogen several times. Then, tetrakistriphenylphosphine palladium (0) (350 mg, 0.30 mmol) was added to the mixture and the mixture was heated to 80° C. overnight. Water (100 mL) was then added to the reaction and the organic layer was partitioned. The aqueous layer was extracted with EtOAc (2×100 mL) and the combined organics were dried with Na2CO3 and concentrated. The crude reaction product was triturated with diethyl ether (25 mL) and filtered. The resulting solid (2.0 g, 83%) was collected and characterized as the biphenyl amine 3. 1H NMR (CDCl3): δ 8.17 (d, 1H), 8.03 (s, 1H), 7.45 (m, 2H), 7.25 (m, 2H), 6.55 (d, 1H), 4.50 (bs, 2H), 3.61 (m, 1H), 3.31 (m, 1H), 1.49 (d, 3H), 1.16 (d, 3H), 1.03 (d, 3H), 0.83 (d, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06887996B2
Source datasetuspto-grants-2005_05
ORD IDord-3beb65b7b55f4706bc34d90659a60ca4
Source noteuspto-grants-2005_05