54. Which reagent is most suitable for the following transformation?
(A) CuF
(B) F-TEDA-BF4
(C) AgSbF6
(D) HBF4
(E) n-Bu4NF
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統計: A(1), B(15), C(2), D(13), E(11) #937583
統計: A(1), B(15), C(2), D(13), E(11) #937583