Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1088764Generated: November 2, 2026

Sulfuric Acid → HCID 19756210, compound

https://huagongshe.com/reaction/1088764

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantHCID 15100972HCID 15100972—
ProductHCID 19756210HCID 19756210—

Reaction Steps

A mixture of 2 g of 4-(chloroacetyl)-4,5-dihydro-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile and 20 ml of concentrated sulfuric acid was stirred at room temperature for 2 hours, then poured into ice water, stirred, and filtered. The product was washed with water and dried giving 2 g of the desired intermediate,. mp 174°-176°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04963553
Source datasetuspto-grants-1990_10
ORD IDord-f4e43c6639bf414785ae16ee4c4f0730
Source noteuspto-grants-1990_10