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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1490553Generated: October 30, 2026

1,3-Dibromobenzene → 2-(3,5-Dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

https://huagongshe.com/reaction/1490553

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-DibromobenzeneHCID 7927—
ReagentBis(pinacolato)diboraneHCID 2733548—
Reagent3-pyridin-2-yl-2-(3-pyridin-2-yl-1H-1,3,2-benzodiazaborol-2-yl)-1H-1,3,2-benzodiazaboroleHCID 122380799—
CatalystBis(1,5-cyclooctadiene)dimethoxydiiridiumHCID 76001521—
SolventCyclopentyl methyl etherHCID 138539—
Product2-(3,5-Dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 5342904798%

Reaction Conditions

Temperature100 °C

Reaction Steps

The general procedure A was followed using 1,3-dibromobenzene (59.0 uL, 0.5 mmol) and B2pin2 (126.9 mg, 0.5 mmol, 1.0 eq.) as starting material. The resulting mixture was allowed to stir 16 hours at 100 oC. 5i was obtained as white solid (178.2 mg, 98%) after purification by silica gel flash chromatography (EtOAc/PE=1:50 v/v). m.p.: 60-62 oC.

Provenance & Evidence

DOI10.1021/jacs.5b05252
Source datasetBorylation dataset from Roche
ORD IDord-2db5109eed8f40abb3af99be6905eebf
Source noteBorylation dataset from Roche