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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1663188Generated: October 31, 2026

Bromine → HCID 67004539, compound

https://huagongshe.com/reaction/1663188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant4-(Pyridin-3-yl)-2-nitroanilineHCID 10465859—
SolventAcetic AcidHCID 176—
ProductHCID 67004539HCID 6700453930.2%

Reaction Steps

To a solution of 4-(pyridin-3-yl)-2-nitroaniline (1.3 g, 9 mmol) in HOAc (25 mL) was added bromine (1.58 g, 9.9 mmol) in HOAc (5 mL). The resulting mixture was stirred at room temperature for one hour and then quenched with ice-water. The solids were collected, washed with water and dried. The solids in EtOAc was then washed with NaOH (2N; 20 mL), water, brine and concentrated in vacuo. The concentrate was purified by chromatography [Silica Gel, ethyl acetate:hexanes (1:1)] to afford the title compound (0.8 g). 1H NMR (CDCl3) δ 8.83 (d, 1H), 8.55 (m, 1H), 8.41 (d, 1H), 8.15 (d, 1H), 7.96 (m, 1H), 7.41 (m, 1H), 6.80 (br s, 2H). (M+1) 294.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08034832B2
Source datasetuspto-grants-2011_10
ORD IDord-57fd64a7bc39487cab1ef38b9432c45d
Source noteuspto-grants-2011_10