反応式
Brc1ccc(Br)cc1.CCOC(=O)C1CCNCC1>CC(C)(C)[O-].Cc1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.[Na+].[Pd].[Pd].c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1>CCOC(=O)C1CCN(c2ccc(Br)cc2)CC1参加物
反応条件
- 温度
- 85 °C
実験手順
A suspension of ethyl piperidine-4-carboxylate (3.27 mL, 21.20 mmol), 1,4-dibromobenzene (5 g, 21.20 mmol), TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (0.485 g, 0.53 mmol), 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (0.990 g, 1.59 mmol) and Sodium Tert-Butoxide (2.444 g, 25.43 mmol) in anhydrous toluene (60 mL) was stirred at 85 °C under nitrogen for 16 hours. The reaction was cooled to ambient temperature, diluted with Ether (100 mL) and filtered through celite. The filtrate was evaporated in vacuo to yield crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 20% EtOAc in heptane. Pure fractions were evaporated to dryness to afford ethyl 1-(4-bromophenyl)piperidine-4-carboxylate (3.91 g, 59.1 %) as a yellow oil.
出典と根拠
- ORDレコード
- ord-6d4c20d55c834a949848dd34c3fa431d
- 出典データセット
- 750 AstraZeneca ELN dataset
- 元リンク
- 出典を表示
関連ノート
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