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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558666Generated: October 29, 2026

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

https://huagongshe.com/reaction/558666

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-EthynylpyridineHCID 186003—
Reactant5-(4-Chloro-phenyl)-3-iodo-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidineHCID 67000825—
Product5-(4-Chloro-phenyl)-3-pyridin-3-ylethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidineHCID 11852031—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-iodo-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine (example C.4) (420 mg, 1.0 mmol) and commercially available 3-Ethynylpyridine (102 mg, 0.9 mmol) according to general procedure II. Obtained as an orange solid (230 mg, 58%). MS (ISP) 398.9 [(M+H)+]; mp 214-215° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-9f6214dd21864894ba6b10b01cea4d2c
Source noteuspto-grants-2011_11