4.Which of the following alkene addition reactions undergoes anti addition?
(A)hydroboration-oxidation
(B) catalytic hydrogenation (H2, Pt)
(C)dihydroxylation of OsO4 (catalytic) and NMO
(D)addition of Br2
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統計: A(0), B(0), C(0), D(1), E(0) #2991245
統計: A(0), B(0), C(0), D(1), E(0) #2991245