N,N-Dimethylethylenediamine → N-(4-bromo-3-methoxyphenyl)-N',N'-dimethylethane-1,2-diamine

HRID 649

Reaktionsgleichung

Reaktionsgleichung von HRID 649
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

Komponenten

7

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

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.

Quellen und Nachweise

ORD-Eintrag
ord-a7c71c7b356644fcbb6f6b90814539ca
Quelldatensatz
750 AstraZeneca ELN dataset
Originallink
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