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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269173Generated: October 27, 2026

3-Bromobenzene-1-sulfonamide → 3-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

https://huagongshe.com/reaction/269173

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Bromobenzene-1-sulfonamideHCID 2734765—
Reactant5-(4-Chloro-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidineHCID 86607995—
Product3-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamideHCID 11852722—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-ethynyl-7-trifluoromethyl pyrazolo[1,5-a]pyrimidine (example C.4) (161 mg, 0.5 mmol) and 3-bromo-benzenesulfonamide (118 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (133 mg, 56%). MS (ISP) 477.1 [(M+H)+]; mp 218-220° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-2096ce071cd64b23858fb3d555a43813
Source noteuspto-grants-2008_11