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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1278216Generated: October 26, 2026

3-Dimethylamino-1-thien-3-ylpropen-1-one → 3-Bromo-7-(3-thienyl)pyrazolo[1,5-a]pyrimidine

https://huagongshe.com/reaction/1278216

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Dimethylamino-1-thien-3-ylpropen-1-oneHCID 596466—
ReactantHCID 178509245HCID 178509245—
SolventAcetic AcidHCID 176—
Product3-Bromo-7-(3-thienyl)pyrazolo[1,5-a]pyrimidineHCID 21163084—

Reaction Steps

A mixture of 0.01 mole of 3-dimethylamino-1-(3-thienyl)-2-propen-1-one and 0.01 mole of 3-amino-4-bromopyrazole in glacial acetic acid is heated at reflux temperature for 8 hours. The solvent is removed in vacuo to give the product of the example.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04281000
Source datasetuspto-grants-1981_07
ORD IDord-beb2d02e5c714b68af21a308ee9700bf
Source noteuspto-grants-1981_07