Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1427177Generated: November 3, 2026

Chlorosulfonic acid → HCID 69085790, compound

https://huagongshe.com/reaction/1427177

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosulfonic acidHCID 24638—
ReactantHCID 20269590HCID 20269590—
SolventWaterHCID 962—
ProductHCID 69085790HCID 6908579087.7%

Reaction Steps

The 3-(p-tolylthio)benzene-1,2-dicarboxylic acid is slowly added to 18 g of chlorosulfonic acid cooling at 5 and 10° C. with an ice-bath. After 1 hour the mixture is poured in iced water. The precipitate is filtered, washed with water and dried obtaining 1.20 g (87.7%) of 7-methyl-9-oxo-9H-thioxanthene-1-carboxylic acid as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08933142B2
Source datasetuspto-grants-2015_01
ORD IDord-9660c8af9b944e27b3a1bcb3cc9acbe9
Source noteuspto-grants-2015_01