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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 345779Generated: October 29, 2026

3-Amino-5-methylisoxazole → Urea, N-(2,6-dimethylphenyl)-N'-(5-methyl-3-isoxazolyl)-

https://huagongshe.com/reaction/345779

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Amino-5-methylisoxazoleHCID 66172—
ReactantIsocyanateHCID 105034—
ReactantTetrahydrofuran tolueneHCID 22635083—
ProductUrea, N-(2,6-dimethylphenyl)-N'-(5-methyl-3-isoxazolyl)-HCID 307619064%

Reaction Steps

7 g (0.04 mole) of the preceding isocyanate, 4 g (0.04 mole) of 3-amino 5-methyl isoxazole are heated at reflux for 16 h in a toluene THF mixture (100--100 ml). The precipitate formed is filtered off, the solution is concentrated. The crystals are recrystallized from an ethanol-water mixture. M.p.=200° Yield 64%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05059614
Source datasetuspto-grants-1991_10
ORD IDord-da7c80cb45cc4c34913e3b085b3ae8ed
Source noteuspto-grants-1991_10