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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1633939Generated: October 29, 2026

Nitric Acid → 3-Methylsulfonyl-4-trifluoromethoxynitrobenzene

https://huagongshe.com/reaction/1633939

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactant1-Methylsulfonyl-2-trifluoromethoxybenzeneHCID 22311091—
SolventSulfuric AcidHCID 1118—
Product3-Methylsulfonyl-4-trifluoromethoxynitrobenzeneHCID 22311166—

Reaction Conditions

Temperature40 °C

Reaction Steps

1-Methylsulfonyl-2-trifluoromethoxybenzene (15.7 g, 65 mmol) was dissolved in concentrated sulfuric acid (27 mL) and the solution was heated to 40° C. Nitric acid (100%, 27 mL) was added dropwise over 45 minutes. The reaction mixture was allowed to stand overnight at 60° C., cooled, and then poured on crushed ice (300 mL). The precipitated product was isolated by filtration, washed with water (10×50 mL) and dried (MgSO4), affording 17.5 g of 3-methylsulfonyl-4-trifluoromethoxynitrobenzene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06503949B1
Source datasetuspto-grants-2003_01
ORD IDord-923dbb4fd66a43339ad1ba2f9376f2fd
Source noteuspto-grants-2003_01