Electric Literature of 202865-80-3, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 202865-80-3 name is 4-Bromo-2-fluoro-1-isopropoxybenzene, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
To a mixture of 2-amino-5-[3-(t-butyl)dimethyl-silanoxypropyloxy]-1-(4-methylbenzyl)benzene (54 mg, 0.14 mmol), 4-bromo-2-fluoro-1-isopropoxybenzene (32.6 mg, 0.14 mmol), dicyclohexylphosphino-2′,6′-diisopropoxy-1,1′-biphenyl (3.3 mg, 0.007 mmol), potassium t-butoxide (28.3 mg, 0.29 mmol) and toluene (2 mL) was added palladium acetate(II) (1.6 mg, 0.007 mmol) under nitrogen atmosphere, and the resulting mixture was stirred at 100 C. for 1 hour. The reaction mixture was concentrated in vacuo. The resulting residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give 1-(4-chlorobenzyl)-3-[3-(t-butyl)dimethyl-silanoxypropyloxy]-6-(3-fluoro-4-isopropoxy phenylamino)benzene (69 mg, Yield: 92%) as brown oil. 1H-NMR (delta ppm TMS/DMSO-d6): 0.00 (6H, s), 0.84 (9H, s), 1.21 (6H, d, J=6.0 Hz), 1.84 (2H, q, =6.0 Hz), 2.22 (3H, s), 3.70 (2H, t, J=6.0 Hz), 3.80 (2H, s), 3.92 (2H, t, J=6.0 Hz), 4.27 (1H, q, 6.0 Hz), 6.32-6.42 (2H, m), 6.62 (1H, d, J=3.0 Hz), 6.75 (1H, dd, J=2.4 Hz, 8.4 Hz), 6.84-6.94 (1H, m), 6.97-7.08 (5H, m), 7.25 (1H, s).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Bromo-2-fluoro-1-isopropoxybenzene, and friends who are interested can also refer to it.