The Diels Alder reaction is a concerted reaction. Define concerted.
◦ A reaction where the diene must be in the s-cis conformation to react.
◦ A reaction where both exo and endo products are formed.
◦ A reaction where the product contains a cyclic ring.
◦ Another term for an endothermic reaction.
◦ A reaction where all changes in bonding (bond making and bond breaking) occur simultaneously.