how-does-oxygen-bending-affect-the-three-dimensional-arrangement-of-furan-in-the

Question

How does oxygen bending affect the three-dimensional arrangement of furan in the Diels-Alder reaction?

Accepted Answer

It alters the alignment of pi bonds for effective overlap.

Answer

It prevents the formation of endo products.

Answer

It increases the electronegativity of furan.

Answer

It destabilizes the reaction intermediate.