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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1363936Generated: October 25, 2026

hydroxylamine-O-sulfonic acid → 3-Bromo-6-chloro-2-fluorobenzonitrile

https://huagongshe.com/reaction/1363936

Reaction equation

Participants

RoleNameHCIDCharge
Reactanthydroxylamine-O-sulfonic acidHCID 76284—
Reactant3-Bromo-6-chloro-2-fluorobenzaldehydeHCID 59299457—
SolventWaterHCID 962—
Product3-Bromo-6-chloro-2-fluorobenzonitrileHCID 50997949100%

Reaction Conditions

Temperature50 °C

Reaction Steps

A suspension of 3-bromo-6-chloro-2-fluorobenzaldehyde (9.0 g, 0.04 mol) and hydroxylamine-O-sulfonic acid (7.50 g, 0.07 mole) in water (300 mL) was heated at 50° C. for eighteen hours. The suspension was cooled and the solid was collected to give 3-bromo-6-chloro-2-fluorobenzonitrile (8.8 g, 0.04 mol): 1H NMR (CDCl3): δ 7.75 (m, 1H), 7.25 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07888287B2
Source datasetuspto-grants-2011_02
ORD IDord-d872e9f2fe4b414ab0fdbb220cd19ce3
Source noteuspto-grants-2011_02