Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293834Generated: October 30, 2026

4-Bromobenzenesulfonamide → 4-[7-Cyclopropyl-5-(3,4-dichloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

https://huagongshe.com/reaction/1293834

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-BromobenzenesulfonamideHCID 69696—
Reactant7-Cyclopropyl-5-(3,4-dichloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608050—
Product4-[7-Cyclopropyl-5-(3,4-dichloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamideHCID 11852718—

Reaction Steps

The title compound was prepared from 7-cyclopropyl-5-(3,4-dichloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.8) (167 mg, 0.51 mmol) and 4-bromo-benzenesulfonamide (121 mg, 0.51 mmol) according to general procedure II. Obtained as a yellow solid (140 mg, 57%). MS (ISP) 483.4 [(M+H)+]; mp 259–261° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238808B2
Source datasetuspto-grants-2007_07
ORD IDord-aec3663628be4f1cacf35ee23aa7fc83
Source noteuspto-grants-2007_07