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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 254260Generated: November 1, 2026

Sodium Hydroxide → HCID 131728621, compound

https://huagongshe.com/reaction/254260

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant5-(3-Nitrophenyl)oxazoleHCID 2737067—
CatalystZincHCID 23994—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 131728621HCID 131728621105.1%

Reaction Steps

1 g (5.26 mmol, 1 eq.) of 5-(3-nitrophenyl)oxazole and 10 mL of TFA are introduced into a 1 L flask. 1 g of zinc is carefully added in a plurality of batches. The mixture is stirred for 2 hours at room temperature then is poured over ice. Sodium hydroxide is slowly added until the medium becomes basic, and the medium is extracted with diethyl ether. The organic phase is washed with a 1 M solution of HCl and the impurities are extracted with diethyl ether. The aqueous phase is again basified with sodium hydroxide and the product is extracted with diethyl ether. The organic phases are combined, dried over MgSO4 and filtered. After concentration to dryness, 700 mg (yield=83%) of aniline 3-oxazol-5-yl-phenylamine are obtained, in the form of a beige solid. The product is used without subsequent purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875609B2
Source datasetuspto-grants-2011_01
ORD IDord-d8a88f9123b34ed9afbeef6fc4fe6f17
Source noteuspto-grants-2011_01