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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 434Generated: October 26, 2026

3-Bromoanisole → 1-(3-Methoxyphenyl)-2-methyl-6-(trifluoromethoxy)indole

https://huagongshe.com/reaction/434

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-BromoanisoleHCID 16971—
Reactant2-Methyl-6-(trifluoromethoxy)-1H-indoleHCID 12180669—
ReagentSodium t-butoxideHCID 23676156—
Catalyst2-(Di-tert-butylphosphino)biphenylHCID 2734215—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
Product1-(3-Methoxyphenyl)-2-methyl-6-(trifluoromethoxy)indoleHCID 1843894765.49%

Reaction Conditions

Temperature120 °C

Reaction Steps

EN04773-51, _Buchwald coupling,_ ** _J. Med. Chem. 2009, page 3846-3854 (exactly same reaction)._** The indole from 4773-41, 1-bromo-3-methoxybenzenee,Pd2(dba)3, JohnPhos and KOtBu were dissolved in toluene. The mixture was warmed at 120 °C for 1h and ~65% conversion was observed on NMR*(see attached NMR). Reaction seems to work fine and assumed better yield than in 4773-50. This could be due to that bromides generally perform better than iodines in the Buchwald coupling. This test reaction was thrown away.

Provenance & Evidence

Source dataset750 AstraZeneca ELN dataset
ORD IDord-5f9307492f2b4cadaa0478f3250edc2b
Source note750 AstraZeneca ELN dataset