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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1247951Generated: October 25, 2026

3-Chloro-3-(3-pyridinyl)-2-propenal → Phenyl[7-(3-pyridinyl)pyrazolo[1,5-a]pyrimidin-3-yl]methanone

https://huagongshe.com/reaction/1247951

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Chloro-3-(3-pyridinyl)-2-propenalHCID 53869734—
ReactantHCID 178509267HCID 178509267—
SolventAcetic AcidHCID 176—
ProductPhenyl[7-(3-pyridinyl)pyrazolo[1,5-a]pyrimidin-3-yl]methanoneHCID 13475883—

Reaction Steps

A mixture of 0.02 mole of 3-chloro-3-(3-pyridinyl)-2-propenal and 0.02 mole of (3-amino-1H-pyrazol-4-yl)phenyl-methanone in 25 ml of glacial acetic acid was refluxed for 5 hours. The solvent was removed and the product isolated as described in Example 1, giving the desired product as crystals, mp 202°-203° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04521422
Source datasetuspto-grants-1985_06
ORD IDord-a23e9e4f3b364645902877e2a219b568
Source noteuspto-grants-1985_06