Organocatalyzed Diels-Alder Cycloaddition Reaction: Mechanism and Transition State. Show mechanism and transition state of the organocatalyzed Diels Alder cycloaddition reaction. I know for sure that before the Diels Alder reaction occurs, the dienophile will react with the catalyst; however, confused on how the dienophile reacts with the catalyst. Any explanation would help. HO MeO- H Quinidine CHCI3 CH3

Organocatalyzed Diels-Alder Cycloaddition Reaction: Mechanism and Transition State

The Diels-Alder cycloaddition reaction is a widely used reaction in organic chemistry for the synthesis of polycyclic compounds. This reaction is catalyzed by an organocatalyst, which is a type of organic compound that acts as a catalyst in a reaction. In the case of the Diels-Alder reaction, the catalyst is typically an amine or quinidine. The organocatalyst is involved in the reaction in two steps. In the first step, the dienophile (the second reactant in the Diels-Alder reaction) reacts with the catalyst to form a cationic species. This cationic species is then attacked by the diene (the first reactant in the Diels-Alder reaction). The subsequent reaction leads to the formation of a transition state, which is characterised by a high energy intermediate. This transition state is a four-membered ring with two double bonds and two single bonds. As the reaction progresses, the transition state is converted into the product of the reaction, which is a cyclohexene. Cont…