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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1953775Generated: November 2, 2026

Sulfuric Acid → 5-Bromomethyl-7-nitro-2,3-dimethoxyquinoxaline

https://huagongshe.com/reaction/1953775

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantIsopropyl nitrateHCID 15575—
Reactant5-Bromomethyl-2,3-dimethoxy-quinoxalineHCID 15941729—
Product5-Bromomethyl-7-nitro-2,3-dimethoxyquinoxalineHCID 23297983—

Reaction Conditions

Temperature0 °C

Reaction Steps

25 ml of sulfuric acid are cooled to 0° C. and 9.5 g (33.55 mmol) of 5-bromomethyl-2,3-dimethoxyquinoxaline are then added. After a further 10 minutes, 3.39 ml (1 eq.) of isopropyl nitrate are added and the mixture is stirred at 0° C. for 1 hour. The mixture is poured onto ice, and the solid is filtered off and washed with water. The title compound is obtained as a beige solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06117873
Source datasetuspto-grants-2000_09
ORD IDord-09c7b5fa0f974ed68a0b22b52b3325fd
Source noteuspto-grants-2000_09