Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 496013Generated: October 29, 2026

4-Toluenesulfonyl chloride → HCID 20819940, compound

https://huagongshe.com/reaction/496013

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantTriethylamineHCID 8471—
Reactant2-Amino-4-hydroxy-6-(trifluoromethyl)pyrimidineHCID 135418580—
SolventDichloromethaneHCID 6344—
ProductHCID 20819940HCID 20819940—

Reaction Steps

To a solution of 2-amino-6-(trifluoromethyl)-4(3H)-pyrimidinone (250 mg, 1.4 mmol), triethylamine (196 μL, 1.4 mmol), N,N-dimethylaminopyridine (17 mg, 0.14 mmol), in CH2Cl2 (13 mL) cooled to 0° C. was added p-toluenesulfonyl chloride (534 mg, 2.8 mmol). The mixture was stirred at room temperature for 16 h. The mixture was diluted with CH2Cl2, washed with H2O (2×20 mL) followed by brine, dried (Na2SO4), evaporated, and dried under vacuum. Desired compound (466 mg, 1.4 mmol; 99+% yield; ES MS [M+H]+=140.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06943172B2
Source datasetuspto-grants-2005_09
ORD IDord-599b8c4ee10d458eb5bc3624f5a10bed
Source noteuspto-grants-2005_09