Ethyl bromopyruvate → HCID 68780924、化合物
反応式
[I:1][C:2]1[CH:3]=[CH:4][C:5]([NH2:9])=[N:6][C:7]=1[CH3:8].Br[CH2:11][C:12](=O)[C:13]([O:15][CH2:16][CH3:17])=[O:14]>C(COC)OC>[I:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:11]([C:5]3[CH:4]=[CH:3][CH:2]=[CH:7][N:6]=3)=[C:12]([C:13]([O:15][CH2:16][CH3:17])=[O:14])[N:9]=2)[C:7]=1[CH3:8]参加物
4
反応条件
- 温度
- 20 °C
実験手順
To a suspension of 2 g of 5-iodo-6-methylpyridine-2-amine in 15 mL of dimethoxyethane are added 1.3 mL of ethyl bromopyruvate. The reaction mixture is stirred at 20° C. for 16 hours and then concentrated to dryness, taken up in 15 mL of ethanol, refluxed for 2.5 hours and finally concentrated under reduced pressure. The residue is taken up in a mixture of dichloromethane and saturated sodium bicarbonate solution. The organic phase is dried over magnesium sulfate and concentrated to dryness under reduced pressure to give 2.77 g of ethyl 6-iodo-5-methyl(pyrid-2-yl)imidazo[1,2-a]pyridine-2-carboxylate in the form of a beige-coloured solid.