37. Provide the reagents to accomplish the synthesis shown below. 
(A) 1. Br2, FeBr3 2. Mg, THF
(B)
(C) 1. Br2, FeBr3 2. Mg, THF 3.
(D) 1. Br2, hv 2. NaCN 3.
(E) 1. Br2, hv 2. Mg, THF 3.
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統計: A(3), B(3), C(3), D(3), E(43) #937566
統計: A(3), B(3), C(3), D(3), E(43) #937566