1,4-Dibromobenzene → Methyl 1-(4-bromophenyl)pyrrolidine-3-carboxylate

HRID 519

反応式

HRID 519 の反応式
Brc1ccc(Br)cc1.COC(=O)C1CCNC1>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>COC(=O)C1CCN(c2ccc(Br)cc2)C1

参加物

7

反応条件

温度
85 °C

実験手順

A suspension of methyl pyrrolidine-3-carboxylate (800 mg, 6.19 mmol), 1,4-dibromobenzene (1461 mg, 6.19 mmol), TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (142 mg, 0.15 mmol), 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (289 mg, 0.46 mmol) and Sodium Tert-Butoxide (714 mg, 7.43 mmol) in anhydrous toluene (30 mL) was stirred at 85 °C under nitrogen for 4 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 methyl 1-(4-bromophenyl)pyrrolidine-3-carboxylate (513 mg, 29.1 %) as a yellow solid.

出典と根拠

ORDレコード
ord-cb0ae83e039e422babb6d81e64a4df69
出典データセット
750 AstraZeneca ELN dataset
元リンク
出典を表示

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