15. When indole is treated with bromine in dioxane at 0o
C, the major organic product is .
(A) 2-bromoindole
(B) 3-bromoindole
(C) 4-bromoindole
(D) 5-bromoindole
(E) 6-bromoindole
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統計: A(2), B(3), C(1), D(0), E(1) #1072903
統計: A(2), B(3), C(1), D(0), E(1) #1072903