N,N-二甲基乙二胺 → N-(4-bromo-3-methoxyphenyl)-N',N'-dimethylethane-1,2-diamine

HRID 649

反应方程式

HRID 649 反应方程式
CN(C)CCN.COc1cc(I)ccc1Br>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]>COc1cc(NCCN(C)C)ccc1Br

参与物

7

反应条件

温度
80 °C

实验过程

A solution of 1-bromo-4-iodo-2-methoxybenzene (0.63 g, 2.01 mmol) dissolved in toluene (15.73 ml) was treated with N1,N1-dimethylethane-1,2-diamine (0.177 g, 2.01 mmol), SODIUM TERT-BUTOXIDE (0.232 g, 2.42 mmol), XANTPHOS (0.116 g, 0.20 mmol) and TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (0.046 g, 0.05 mmol) under nitrogen. The resulting mixture was stirred at 80 °C in a sealed tube for 2 hours. The reaction mixture was diluted with water (200 mL), and extracted with ethyl acetate (200 mL). The organic was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution 0-10% methanol in dcm. Pure fractions were evaporated to dryness to afford N1-(4-bromo-3-methoxyphenyl)-N2,N2-dimethylethane-1,2-diamine (0.251 g, 45.6 %) as a brown oil.

来源与证据

ORD记录
ord-a7c71c7b356644fcbb6f6b90814539ca
来源数据集
750 AstraZeneca ELN dataset
原始链接
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