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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 278408Generated: October 31, 2026

Ammonia → HCID 178422859, compound

https://huagongshe.com/reaction/278408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHydroxylamineHCID 787—
ReactantWaterHCID 962—
ReactantMethyl acetoacetateHCID 7757—
ProductHCID 178422859HCID 178422859—

Reaction Steps

208 g of a 50% aqueous hydroxylamine solution and 91 ml of 28% aqueous ammonia were added to 350 ml of water, into which 348 g of methyl acetoacetate was dropped over 50 minutes at temperature below 15° C. After the completion of the dropping, the reaction solution returned to room temperature and stood undisturbed for 6 days to give 900 ml of an aqueous solution of crude ammonium salt of 5 -hydroxy-3-methyl-4-(3-methylisooxazol-5-yl)isoxazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06359143B1
Source datasetuspto-grants-2002_03
ORD IDord-f58240facde64f2690787357bd7d7a56
Source noteuspto-grants-2002_03