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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2259776Generated: November 2, 2026

Bromine → HCID 19001639, compound

https://huagongshe.com/reaction/2259776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantSodium ThiosulfateHCID 24477—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 13934185HCID 13934185—
SolventCarbon TetrachlorideHCID 5943—
ProductHCID 19001639HCID 19001639100.6%

Reaction Conditions

Temperature10 °C

Reaction Steps

2.94 g of 5-isopropyl-1,3-benzodioxole was dissolved in 30 ml of carbon tetrachloride to obtain a solution. A solution of 3.15 g of bromine in 5 ml of carbon tetrachloride was dropwise added to the solution at a temperature of -5° to 5° C. The obtained mixture was stirred at 10° C. for 8.5 hours. Nitrogen gas was passed through the resulting mixture, followed by the addition of a saturated aqueous solution of sodium hydrogencarbonate and an aqueous solution of sodium thiosulfate. The obtained mixture was extracted with chloroform and the organic layer was washed with a saturated aqueous solution of common salt, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated to obtain 4.38 g of the title compound as a crude oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05475024
Source datasetuspto-grants-1995_12
ORD IDord-54adfc021b74485f9de07ce85d9080d4
Source noteuspto-grants-1995_12