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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2084140Generated: November 1, 2026

Sodium Hydroxide → HCID 22732477, compound

https://huagongshe.com/reaction/2084140

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantTin tetrachlorideHCID 24287—
Reactant4-(2-Methyl-5-nitroanilino)-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidineHCID 9969693—
SolventEthanolHCID 702—
ProductHCID 22732477HCID 2273247744%

Reaction Steps

To a solution of 4-(2-methyl,5-nitroanilino)-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidine (75 mg, 0.200 mmol) in anhydrous ethanol (10 ml) was added slowly anhydrous tin chloride (152 mg, 0.800 mmol). The mixture was refluxed for 1 h and then rotary evaporated to leave a brown oil. The brown oil was basified with 2N NaOH to give a final pH of 8. The resulting precipitate was filtered and washed with ethyl acetate. The aqueous phase and organic phase was combined, washed with water (1×20 ml) and dried over anhydrous sodium sulfate. The ethyl acetate was rotary evaporated to dryness to give a dark yellow solid (33 mg, 44%). 1H NMR (CDCl3): 9.69-9.68 (m, 1H), 8.73-8.67 (m, 2H), 7.53 (s, 1H), 7.43-7.39 (m, 1H), 7.11 (d, J=8.4 Hz, 1H), 6.72 (s, 1H), 6.64 (d, J=2.7 Hz, 1H), 6.61 (s, 1H), 3.01 (bs, 2H), 2.17 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06716851B2
Source datasetuspto-grants-2004_04
ORD IDord-87c862d696694ce4a397f9065f8855dc
Source noteuspto-grants-2004_04