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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1282462Generated: November 3, 2026

Bromine → HCID 18424469, compound

https://huagongshe.com/reaction/1282462

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantHCID 13149942HCID 13149942—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 18424469HCID 1842446972.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

Into a reactor were introduced 8.81 g (39.6 mmol) of the 1,1-diphenyl-3-methylbutene and 35 mL of 1,2-dichloroethane under a nitrogen atmosphere. The contents were cooled to 0° C., and 6.33 g (39.6 mmol) of bromine was gradually added dropwise thereto. This mixture was stirred at room temperature for 1 hour. The resultant reaction mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated aqueous sodium chloride solution and then dried with anhydrous magnesium sulfate. Thereafter, the solvent was removed under reduced pressure. The concentrate was recrystallized from ethanol and ethyl acetate to obtain 8.64 g (72%) of the target compound as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455720B1
Source datasetuspto-grants-2002_09
ORD IDord-28088487e6564a62adbbad9432c5ed3d
Source noteuspto-grants-2002_09