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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1648186Generated: November 1, 2026

Sulfuric Acid → HCID 19918951, compound

https://huagongshe.com/reaction/1648186

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAcetic AnhydrideHCID 7918—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 19918956HCID 19918956—
SolventAcetoneHCID 180—
ProductHCID 19918951HCID 19918951—

Reaction Steps

A mixture of 2-(2-chlorophenyl)acetoacetic acid (9.6 g), acetone (6.8 ml), and acetic anhydride (8.8 ml) was kept at -15° and concentrated sulfuric acid (0.53 ml) was added thereto. This was kept at -15° C. and the reaction was carried out for 24 hours. The reaction mixture was added to an aqueous 10 % sodium carbonate solution (250 ml) which was ice-cooled, and the mixture was stirred for a short time at room temperature. White crystals which formed were collected by filtration, and washed well with water and then with hexane. The crystals obtained were dried well under reduced pressure to obtain the captioned compound (9.0 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05436224
Source datasetuspto-grants-1995_07
ORD IDord-da8ce33646504a3d933baecb4cbbe120
Source noteuspto-grants-1995_07