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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 582792Generated: October 31, 2026

Taurine → 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonate potassium

https://huagongshe.com/reaction/582792

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTaurineHCID 1123—
ReactantPhthalic AnhydrideHCID 6811—
ReactantPotassium AcetateHCID 517044—
SolventAcetic AcidHCID 176—
Product2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonate potassiumHCID 2296047784.1%

Reaction Steps

A mixture containing 30 g of taurine, 25 g of potassium acetate and 90 ml of acetic acid is brought to reflux for 10 minutes and 37.8 g of phthalic anhydride are then added. The mixture is heated to reflux for two and a half hours and then filtered, and the product is washed with AcOH and then with 2-propanol; it is rinsed with ether and then dried under vacuum to obtain 59.14 g of the expected product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05925661
Source datasetuspto-grants-1999_07
ORD IDord-fdc931e8d02d438ea8c028ec5dba6ec1
Source noteuspto-grants-1999_07