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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1490545Generated: October 27, 2026

1,2,3-Trimethoxybenzene → 4,4,5,5-Tetramethyl-2-(3,4,5-trimethoxyphenyl)-1,3,2-dioxaborolane

https://huagongshe.com/reaction/1490545

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2,3-TrimethoxybenzeneHCID 12462—
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—
Product4,4,5,5-Tetramethyl-2-(3,4,5-trimethoxyphenyl)-1,3,2-dioxaborolaneHCID 2192394699%

Reaction Conditions

Temperature100 °C

Reaction Steps

The general procedure A was followed using 1,2,3-trimethoxybenzene (84.1 mg, 0.5 mmol) and B2pin2 (126.9 mg, 0.5 mmol, 1.0 eq.) as starting material. The resulting mixture was allowed to stir 8 hours at 100 oC. 5c was obtained as white solid (146.1 mg, 99%) after purification by silica gel flash chromatography (EtOAc/PE=1:20 v/v). m.p.: 104-106 °C.

Provenance & Evidence

DOI10.1021/jacs.5b05252
Source datasetBorylation dataset from Roche
ORD IDord-a6ca3c63c73e4b2988f631e8660d014c
Source noteBorylation dataset from Roche