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

HRID 649

Reaction equation

HRID 649 reaction equation
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

Participants

7

Conditions

Temperature
80 °C

Procedure

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.

Sources & evidence

ORD record
ord-a7c71c7b356644fcbb6f6b90814539ca
Source dataset
750 AstraZeneca ELN dataset
Original link
View source

Linked notes

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