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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 567701Generated: October 29, 2026

Sulfuric Acid → HCID 178472125, compound

https://huagongshe.com/reaction/567701

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantSodium AcetateHCID 517045—
ReactantHCID 21714649HCID 21714649—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 178507366HCID 178507366—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178472125HCID 178472125—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 1.0 g. (7.45 mmoles) of 5-aminobenzotriazole in 10 ml. of ethanol, was added 10 ml. of water and 45 ml. of concentrated sulfuric acid. The solution was cooled to 0° C. and a solution of 560 mg. (8.2 mmoles) of sodium nitrite in 3 ml. of water was added dropwise. After 90 minutes at this temperature, the solution was added to a solution of 1.53 g. (8.2 mmoles) of 3-acetyl-4-oxopentanoate, 2.05 g. (22.3 mmoles) and sodium acetate in 10 ml. of ethanol and 20 ml. of water. A solid began to separate which was collected after 30 minutes to give 1.73 g. of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06180628B2
Source datasetuspto-grants-2001_01
ORD IDord-7cabfb4bcc424cbb96de5d9d372a9b78
Source noteuspto-grants-2001_01