試題詳解

61. Which of the following statement for Diels-Alder reaction is false?
(A) Diels-Alder reaction is a pericyclic process.
(B) The endo product, rather than exo product, is formed.
(C) It is a thermal reaction.
(D) It is a suprafacial [4+2]-π-electron cycloaddition.
(E) None of the above.