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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1534267Generated: November 4, 2026

hydroxylamine-O-sulfonic acid → 4-Ethoxy-2,3-difluorobenzonitrile

https://huagongshe.com/reaction/1534267

Reaction equation

Participants

RoleNameHCIDCharge
Reactanthydroxylamine-O-sulfonic acidHCID 76284—
Reactant4-Ethoxy-2,3-difluorobenzaldehydeHCID 14495625—
Product4-Ethoxy-2,3-difluorobenzonitrileHCID 14495626—

Reaction Steps

4-Ethoxy-2,3-difluorobenzaldehyde (obtainable according to Example 7) is reacted with hydroxylamine -O-sulfonic acid according to J. Streith and C. Fizet, Helv. Chim. Acta 59, 2796 (1976), m.p.: 45° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05087764
Source datasetuspto-grants-1992_02
ORD IDord-f6aa0e6a36434f9b8a74e7822875e05e
Source noteuspto-grants-1992_02