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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2290797Generated: October 30, 2026

4,4'-Dibromobiphenyl → Biphenyl

https://huagongshe.com/reaction/2290797

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,4'-DibromobiphenylHCID 7110—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 178418950HCID 178418950—
CatalystPalladiumHCID 23938—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductBiphenylHCID 7095—
Product4-BromobiphenylHCID 7101—

Reaction Steps

To a solution of 3.1 g of 4,4'-dibromo biphenyl in 30 ml tetrahydrofuran was added 3.5 g sodium carbonate and 400 mg of 5% palladium on carbon. To this reaction mixture there was added 2.5 g sodium hypophosphite monohydrate in about 20 ml water. After about one hour, a GC analysis established that all of the starting material had reacted to yield primarily biphenyl with a trace amount of p-mono-bromobiphenyl.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04618686
Source datasetuspto-grants-1986_10
ORD IDord-bdbb6731b94b412e8ae36996f9466339
Source noteuspto-grants-1986_10