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

HRID 520

反応式

HRID 520 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 (2.1 g, 16.26 mmol), 1,4-dibromobenzene (3.84 g, 16.26 mmol), TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (0.372 g, 0.41 mmol), 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (0.759 g, 1.22 mmol) and Sodium Tert-Butoxide (1.875 g, 19.51 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 5 to 20% EtOAc in heptane. Pure fractions were evaporated to dryness to afford methyl 1-(4-bromophenyl)pyrrolidine-3-carboxylate (1.460 g, 31.6 %) as a yellow solid.

出典と根拠

ORDレコード
ord-7673f35cb6ca4307811eaa7801ce679c
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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