Which of the following statements about allylic bromination using NBS is false?
A) Molecular bromine concentration must be low.
B) Allylic rearrangements may occur.
C) HBr is required in trace amounts.
D) Symmetrical alkenes are the most suitable substrates for the reaction to avoid mixtures of products.
E) Bromine radical is produced by homolytic cleavage of the N-Br bond in N-bromosuccinimide.
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