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HRID 445作成日:2026年10月23日

3-Iodobenzyloxybenzene → 2-Methyl-1-(3-phenylmethoxyphenyl)-6-(trifluoromethoxy)indole

https://huagongshe.com/ja/reaction/445

反応式

関与物質

役割名称HCID仕込み量
反応物3-IodobenzyloxybenzeneHCID 4228019—
反応物2-Methyl-6-(trifluoromethoxy)-1H-indoleHCID 12180669—
試薬Sodium t-butoxideHCID 23676156—
触媒2-(Di-tert-butylphosphino)biphenylHCID 2734215—
触媒Bis(dibenzylideneacetone)palladiumHCID 9811564—
溶媒1,4-DioxaneHCID 31275—
生成物2-Methyl-1-(3-phenylmethoxyphenyl)-6-(trifluoromethoxy)indoleHCID 5921672040.17%

反応条件

温度120 °C

反応手順

EN04773-50, _Buchwald coupling,_ ** _J. Med. Chem. 2009, page 3846-3854 (changed: solvent to dioxane and bromide to iodide)._** The indole from 4773-41, 1-(benzyloxy)-3-iodobenzene, Pd2(dba)3, JohnPhos and KOtBu were dissolved in toluene. The mixture was warmed at 120 °C for 1h and ~40% conversion was observed on NMR. The reaction mixture was further heated at 80 °C for 16h and 40 h, see attached 1H-NMR for reaction progress. A comparison with 4773-51 shows that using dioxane or iodide gives a lower yield (slower reaction). Switching the solvent to toluene was explored in 4773-52. The reaction in this experiment showed that the Buchwald conditions worked. Reaction mixture was thrown away.

情報源と証拠

出典データセット750 AstraZeneca ELN dataset
ORD IDord-232b7429c3f0450bb3d4836c8a002e13
出典メモ750 AstraZeneca ELN dataset