Which β-nitrostyrene analogues were used to demonstrate the effectiveness of the NaBH₄/CuCl₂ system?

Label:chem

Topic
A study aims to demonstrate the effectiveness of the NaBH₄/CuCl₂ system for reducing β-nitrostyrenes to phenethylamines. Various β-nitrostyrene analogues were tested.
Answer
The β-nitrostyrene analogues used in the study include 2,5-dimethoxy-β-methyl-β-nitrostyrene (3a), 2,5-dimethoxy-β-nitrostyrene (4a), 2-(2,5-dimethoxyphenyl)ethan-1-amine (4b), 2-(2,5-dimethoxy-4-methylphenyl)ethan-1-amine (5b), and 2-(2,5-dimethoxy-4-(trifluoromethyl)phenyl)ethan-1-amine (6b). These analogues were chosen to demonstrate the versatility and effectiveness of the NaBH₄/CuCl₂ system.
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