Cl[C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:9][O:10][CH3:11])=[CH:4][N:3]=1.[CH3:12][C:13]([CH3:17])=[CH:14][Mg]Br>C1COCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:11][O:10][CH2:9][O:8][C:5]1[CH:6]=[CH:7][C:2]([CH:12]=[C:13]([CH3:17])[CH3:14])=[N:3][CH:4]=1A solution of 2-chloro-5-(methoxymethoxy)pyridine (0.620 g, 3.6 mmol) and 1,1′-bis(diphenylphosphino)ferrocene-palladium dichloride (0.13 g, 0.18 mmol) in THF (7 mL) was cooled to 0° C. 2-methyl-1-propenylmagnesium bromide, (0.5 M in THF) (9.3 ml, 4.6 mmol) was added slowly and the reaction was allowed to stir 12 hrs at RT. The reaction was quenched by the addition of a 10:1 aqueous sat ammonium chloride/ammonium hydroxide solution and extracted into ethyl acetate. The combined organic layers were washed with 10:1 aqueous sat. ammonium chloride/ammonium hydroxide solution, water, brine, dried over sodium sulfate and concentrated. The crude product was purified by filtration through a plug of silica gel (2:1 Hexanes/EtOAc) to afford the title product. MS m/z: 194.1 (100%, M+1).
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