So you're saying that you have 2-bromo-4,5-dimethoxybenzaldehyde? YES YES YES
and you want 2-bromo-4,5-dimethoxyphenethylamine? no TMA-2
If so, then I would imagine that condensation with MeNO2 with ammonium acetate as catalyst would form a nitrostyrene
Give the description of process
If it's TMA-2 (an amphetamine, rather than just a phenethylamine) you want, then use EtNO2 rather than MeNO2.
Give the description of process please ! (example)
2-Bromo-4,5-dimethoxybenzaldehyde has been prepared, it is reacted with sodium methoxide in methanol, with EtOAc/CuBr as catalyst [4] to form 2,4,5-trimethoxybenzaldehyde
And give the description this of process please ! (example)