3-Bromopyridine → tert-butyl (3R)-3-methyl-4-pyridin-3-ylpiperazine-1-carboxylate

HRID 512

反応式

HRID 512 の反応式
Brc1cccnc1.C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1>CC(C)(C)[O-].CC1(C)c2cccc(P(c3ccccc3)c3ccccc3)c2Oc2c(P(c3ccccc3)c3ccccc3)cccc21.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]>C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1c1cccnc1

参加物

7

反応条件

温度
85 °C

実験手順

TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (0.145 g, 0.16 mmol) and 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (0.183 g, 0.32 mmol) were added to a mixture of Sodium tert-butoxide (0.912 g, 9.49 mmol), 3-bromopyridine (0.610 mL, 6.33 mmol),(R)-tert-butyl 3-methylpiperazine-1-carboxylate (1.901 g, 9.49 mmol) and toluene (20 mL) under nitrogen. The mixture was heated at 85 °C for 16 hours before being cooled to RT and filtered through celite. The filtrate was concentrated and the reaction mixture was seperated by flash silica chromatography, elution gradient 20 to 40% EtOAc in heptane. No product was isolated. .

出典と根拠

ORDレコード
ord-d7d7e0dc4c0741f08ecfdb907acad13f
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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