Allylic and benzylic brominations are of paramount importance in organic synthesis.
They give rise to many valuable synthons leading to the production of fine chemicals,
agrochemicals and pharmaceuticals. A great many bromination methods have thus
been developed to conduct the titled reactions under different circumstances. The need for
environmentally benign conditions to circumvent drawbacks associated with original
methods has significantly enhanced the advance in this field. Herein, only methods for
benzylic brominations are reviewed and outlined because alkylbenzenes are more often
chosen as the model substrates for new methods development.
Keywords: Allylic and benzylic brominations, brominating agents, debromination, green chemistry, radical reaction, solvents.
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