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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2278403Generated: November 1, 2026

Nitric Acid → 4-Bromo-1-ethyl-2-nitrobenzene

https://huagongshe.com/reaction/2278403

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantWaterHCID 962—
Reactant1-Bromo-4-ethylbenzeneHCID 15313—
SolventSulfuric AcidHCID 1118—
Product4-Bromo-1-ethyl-2-nitrobenzeneHCID 756699634.5%

Reaction Conditions

Temperature-20 °C

Reaction Steps

To a solution of 1-bromo-4-ethylbenzene (7 g, 37.8 mmol) in 9 mL concentrated H2SO4 at −20° C. was added a mixture of H2SO4 (3.74 g, 41.9 mmol) and HNO3 (2.64 g, 41.9 mmol). The mixture was stirred at −20° C. for 2 h. Water was added and the mixture was extracted with EtOAc. The organic phase was washed with aqueous NaHCO3 and brine, dried over Na2SO4 and concentrated. The residue was purified by silica gel column chromatography to give that tile compound (3 g, 34%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133180B2
Source datasetuspto-grants-2015_09
ORD IDord-a859486f0d9346fd85a470936f6d2057
Source noteuspto-grants-2015_09