Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2405685Generated: November 1, 2026

2-Bromotoluene → Benzenamine, 2-methyl-N-(2-methylphenyl)-

https://huagongshe.com/reaction/2405685

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-BromotolueneHCID 7236—
Reactant2-ChlorotolueneHCID 7238—
ReactantLithium amideHCID 24532—
Reactant2-(Di-tert-butylphosphino)biphenylHCID 2734215—
ReactantSodium t-butoxideHCID 23676156—
Catalyst(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladiumHCID 6505921—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
SolventDiethyl EtherHCID 3283—
ProductBenzenamine, 2-methyl-N-(2-methylphenyl)-HCID 13642372%

Reaction Conditions

Temperature80 °C

Reaction Steps

The following were added to a reaction vessel dried as indicated: One mole percent of Pd2(dba)3 (1.39 g, 1.52 mmol) or Pd(dba)2 (1.38 g, 2.4 mmol, 1.4 mol %), 2-(di-tert-butylphosphino)biphenyl (1.09 g, 3.65 mmoles, 2.4 mole %), 2-bromotoluene (40 mL, 332.1 mmol) or 2-chlorotoluene (39 mL, 332.1 mmol), lithium amide (3.47 g, 151.1 mmol, 45 mol %), sodium t-butoxide 29.5 g, 297.7 mmol, 90 mol %), and then toluene (150 mL). The mixture was then heated at 80° C. under argon overnight. Following the reaction period the mixture was allowed to cool to room temperature, and then diluted with diethyl ether and filtered through a pad of celite. The collected filtrate was concentrated in vacuo. Purify of the resulting residue was accomplished by flash silica gel chromatography in hexane to give the desired product as white crystals with a yellow tint (23.4 g, 118.6 mmol, 72% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08809317B2
Source datasetuspto-grants-2014_08
ORD IDord-ed4c0e239a4c4d6a9d317a1e7636e6f3
Source noteuspto-grants-2014_08