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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612717Generated: November 2, 2026

Tin tetrachloride → HCID 21184806, compound

https://huagongshe.com/reaction/612717

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTin tetrachlorideHCID 24287—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 9863298HCID 9863298—
SolventEthanolHCID 702—
ProductHCID 21184806HCID 21184806100.1%

Reaction Steps

To a solution of N-(2-hydroxy-3-nitrophenyl)-N'-(2-bromophenyl)urea (300 mg, 0.85 mmol) in ethanol (20 mL), Tin chloride (958 mg, 4.25 mmol) was added. The reaction mixture was stirred at reflux for 16 hours then cooled to room temperature. The reaction mixture was basified to pH 8 with aq. NaHCO3 then extracted with ethyl acetate (3×). The organic extracts were combined, dried over MgSO4, filtered and concentrated under reduced pressure to give product (274 mg, 99%). EI-MS m/z 323 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06005008
Source datasetuspto-grants-1999_12
ORD IDord-a2c84edc9f4543a19b5eeb96c179f97f
Source noteuspto-grants-1999_12