試題詳解

12. Chorismate mutase is an enzyme that catalyzes a pericyclic reaction that forms prephenate. What kind of a pericyclic reaction does chorismate mutase catalyze? 
(A) an ene reaction
(B) an electrocyclic reaction
(C) a sigmatropic rearrangement
(D) a cycloaddition reaction
(E) None of the above