What is the role of sodium borohydride (NaBH₄) in the reduction of β-nitrostyrenes to phenethylamines?

Label:chem

Topic
A study describes a method for synthesizing phenethylamines from β-nitrostyrenes using a combination of sodium borohydride (NaBH₄) and copper(II) chloride (CuCl₂). Sodium borohydride is a reducing agent used in organic chemistry to reduce various functional groups.
Answer
Sodium borohydride (NaBH₄) acts as a non-pyrophoric and easy-to-handle reducing agent in this study. It is used in combination with CuCl₂ to reduce β-nitrostyrenes to phenethylamines, facilitating the transformation of the nitro and double bond functionalities to the corresponding primary amine under mild conditions.
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