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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291608Generated: October 30, 2026

Phosphorus oxychloride → 4-Chloro-3,5-dinitrobenzene-1-sulfonyl chloride

https://huagongshe.com/reaction/2291608

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantBenzenesulfonic acid, 4-chloro-3,5-dinitro-, potassium saltHCID 3036952—
SolventAcetonitrileHCID 6342—
SolventSulfolaneHCID 31347—
Product4-Chloro-3,5-dinitrobenzene-1-sulfonyl chlorideHCID 14323986—

Reaction Steps

760 g (2 moles) 3,5-dinitro-4-chlorobenzenesulfonic acid potassium salt (approx. 85%) and 614 g (4 moles) phosphorus oxychloride were reacted as in Example 1(a) in 800 ml acetonitrile and 800 ml tetramethylenesulfone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04797427
Source datasetuspto-grants-1989_01
ORD IDord-886594b4c60146f0b53deefa13b970a5
Source noteuspto-grants-1989_01