Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542500Generated: October 30, 2026

Sulfuric Acid → HCID 20208470, compound

https://huagongshe.com/reaction/542500

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantHCID 20208557HCID 20208557—
SolventWaterHCID 962—
ProductHCID 20208470HCID 20208470—

Reaction Steps

2-n-butylamino-5-ethyl-4H-3,1-benzoxazin-4-one acetate (1.0 g) is dissolved in 50 ml water containing a stoichiometric equivalent of sulfuric acid, and the solution evaporated to dryness. The product is suspended in ether and filtered, air dried and recrystallized from methanol/acetone to yield 2-n-butylamino-5-ethyl-4H-3,1-benzoxazin-4-one sulfate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04657893
Source datasetuspto-grants-1987_04
ORD IDord-8cfe375007994721a2a072fdf1710820
Source noteuspto-grants-1987_04