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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293847Generated: October 30, 2026

3-Bromopyridine → 5-(4-Chloro-3-methyl-phenyl)-3-pyridin-3-ylethynyl-7-trifluoromethyl-pyrazolo [1,5-a]pyrimidine

https://huagongshe.com/reaction/1293847

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-BromopyridineHCID 12286—
Reactant5-(4-Chloro-3-methyl-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidineHCID 86608053—
Product5-(4-Chloro-3-methyl-phenyl)-3-pyridin-3-ylethynyl-7-trifluoromethyl-pyrazolo [1,5-a]pyrimidineHCID 67000907—

Reaction Steps

The title compound was prepared from 5-(4-chloro-3-methyl-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine (example C.11) (336 mg, 1.0 mmol) and commercially available 3-bromopyridine (158 mg, 1.0 mmol) according to general procedure II. Obtained as a yellow solid (90 mg, 22%). MS (ISP) 413.0 [(M+H)+]; mp 196° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238808B2
Source datasetuspto-grants-2007_07
ORD IDord-779c080bef1347ffbb44f941267d5fa7
Source noteuspto-grants-2007_07