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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 838846Generated: October 30, 2026

Acetylacetone → Pyrazolo(1,5-a)pyrimidine, 5,7-dimethyl-

https://huagongshe.com/reaction/838846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetylacetoneHCID 31261—
ReactantHCID 178418806HCID 178418806—
ReactantHCID 178469928HCID 178469928—
ProductPyrazolo(1,5-a)pyrimidine, 5,7-dimethyl-HCID 215186—

Reaction Steps

The procedure for preparation of the 5,7-dialkyl compounds of this invention follows generally that reported by Y. Makisumi, Chem. Pharm. Bull. (Tokyo) 10, 612 (1962) wherein 3-aminopyrazole or 3-amino-4-carbethoxypyrazole is condensed with pentane-2,4-dione to provide 5,7-dimethylpyrazolo[1,5-a]pyrimidine or the 3-carbethoxy derivative.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04093617
Source datasetuspto-grants-1978_06
ORD IDord-d0a3e44afa7a499db3dd00e031c37323
Source noteuspto-grants-1978_06