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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 745799Generated: October 30, 2026

Benzenesulfinic acid → HCID 23312061, compound

https://huagongshe.com/reaction/745799

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfinic acidHCID 12057—
Reactant4-BromocatecholHCID 28487—
ReactantSodiumHCID 5360545—
ProductHCID 23312061HCID 23312061—

Reaction Steps

48.0 g of 4-bromo-1,2-benzenediol [cf. W. Rosermund, Ber. 62, 1262 and so forth (1923)] are oxidatively condensed with 33.4 g of the sodium salt of benzenesulphinic acid in a manner analogous to that described in Example 5a). Crystallisation from 1,2-dichloroethane yields 4-bromo-5-(phenylsulphonyl)-1,2-benzenediol in the form of colourless crystals having a melting point of 166°-168°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04600709
Source datasetuspto-grants-1986_07
ORD IDord-c916f62dbc7a4f84b50237008acbce50
Source noteuspto-grants-1986_07