Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 970451Generated: October 26, 2026

Sulfadiazine → N-Pyrimidin-2-yl-4-thioformylamino-benzenesulfonamide chloride

https://huagongshe.com/reaction/970451

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfadiazineHCID 5215—
ReactantTriethylamineHCID 8471—
ReactantThiophosgeneHCID 10040—
SolventDichloromethaneHCID 6344—
ProductN-Pyrimidin-2-yl-4-thioformylamino-benzenesulfonamide chlorideHCID 86601004—

Reaction Steps

To a stirred solution of sulfadiazine (192 mg, 0.77 mmol) in dichloromethane (20 mL) were slowly added thiophosgene (0.06 mL, 0.83 mmol) and triethylamine (0.05 mL, 0.32 mmol) under cooling with an ice bath. After the reaction mixture was stirred for 5 hours at room temperature, it was washed with water and brine, dried over anhydrous sodium sulfate, filtered, evaporated and dried under vacuum; and the product was used immediately for the next reaction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07312226B2
Source datasetuspto-grants-2007_12
ORD IDord-cf3bb77c30804f6cb4508dd9303d2f94
Source noteuspto-grants-2007_12