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# Choosing an Appropriate Addition Reaction

ORGO1-GF3UYX

What reagent could be used in the first step of this multi-step synthesis to allow the following transformation to work?

A

$HBr,\text{benzoyl peroxide}$

B

$H_2O, H_2SO_4$

C

$HBr$

D

$1. B_2H_6, THF$
$2. H_2O_2, NaOH$