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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1956678Generated: November 3, 2026

Tin tetrachloride → HCID 21184806, compound

https://huagongshe.com/reaction/1956678

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 (3x). 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 numberUS05780483
Source datasetuspto-grants-1998_07
ORD IDord-5caee883ef06401fad93a65b6337bf77
Source noteuspto-grants-1998_07