溴苯 → 1,2-Diphenylpiperidine

HRID 569

反应方程式

HRID 569 反应方程式
Brc1ccccc1.c1ccc(C2CCCCN2)cc1>C1COCCO1.CC(C)Oc1cccc(OC(C)C)c1-c1ccccc1P(C1CCCCC1)C1CCCCC1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C([O-])[O-].[Cs+].[Cs+].[Pd].[Pd]>c1ccc(C2CCCCN2c2ccccc2)cc1

参与物

7

反应条件

温度
100 °C

实验过程

Caesium carbonate (556 mg, 1.71 mmol) was added to bromobenzene (0.060 mL, 0.57 mmol) and 2-phenylpiperidine (110 mg, 0.68 mmol) in 1,4-dioxane (2 mL). The reaction was degassed and Tris(dibenzylideneacetone)?dipalladium(0) (13.01 mg, 0.01 mmol) and dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine (RuPhos) (13.26 mg, 0.03 mmol) were added. The resulting solution was stirred at 100 °C for 16 hours. LCMS showed The reaction mixture was diluted with EtOAc, and washed with water. The organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 15% MeOH in DCM. Pure fractions were evaporated to dryness to afford 1,2-diphenylpiperidine (21.00 mg, 15.56 %) as a yellow oil. f0 = 19 mg bromobenzene f1 = 21 mg product The reaction was abandonned.

来源与证据

ORD记录
ord-bd4700a79525457dbcfd3c5e1368118f
来源数据集
750 AstraZeneca ELN dataset
原始链接
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