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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1680164Generated: October 31, 2026

Sulfuric Acid → HCID 70573760, compound

https://huagongshe.com/reaction/1680164

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactanttert-ButanolHCID 6386—
Reactant4-(2,6-Dichloroanilino)-3-thiophenacetic acid methyl esterHCID 57145236—
ProductHCID 70573760HCID 70573760—

Reaction Steps

316 mg (1 mmole) of 4-(2,6-dichloroanilino)-3-thiophenacetic acid methyl ester are warmed to 60° in 20 ml of tert.-butanol and 2 ml of concentrated sulfuric acid for 2 hours. The excess alcohol is distilled off. Chromatography on a column (silica gel/methylene chloride) gives, in the first fraction, 4-(2,6-dichloroanilino)-3-thiophenacetic acid tert.-butyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04272507
Source datasetuspto-grants-1981_06
ORD IDord-00c18c7984be48b1a93d666f42ff57cd
Source noteuspto-grants-1981_06